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【结 构 式】

【分子编号】17950

【品名】D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride

【CA登记号】21691-49-6

【 分 子 式 】C6H13NO2S

【 分 子 量 】163.24076

【元素组成】C 44.15% H 8.03% N 8.58% O 19.6% S 19.64%

与该中间体有关的原料药合成路线共 11 条

合成路线1

该中间体在本合成路线中的序号:(V)

The condensation of 2-bromo-4-nitrotoluene (I) with phenylboronic acid (II) by means of Pd(OAc)2 in aqueous acetone gives the biphenyl (III), which is oxidized with KMnO4 in aqueous pyridine yielding the biphenyl-2-carboxylic acid (IV). The condensation of (IV) with L-methionine methyl ester (V) by means of EDC and HOBT affords the amide (VI), which is reduced with SnCl2 to give the 5-aminobiphenyl derivative (VII). The reductocondensation of (VII) with N-(tert-butoxycarbonyl)-S-trityl-L-cysteinal (VIII) by means of NaBH3CN affords the secondary amine (IX), which is finally deprotected with HgCl2 and H2S in methanol to furnish the target ester.

1 Fossum, R.D.; Marugan, J.J.; Vogt, A.; Qian, Y.; Sebti, S.M.; Hamilton, A.D.; Probing the hydrophobic pocket of farnesyltransferase: Aromatic substitution of CAAX peptidomimetics leads to highly potent inhibitors. Bioorg Med Chem 1999, 7, 12, 3011.
2 Sebti, S.; Hamilton, A. (University of Pittsburgh); Inhibitors of prenyl transferases. JP 1998512266; WO 9621456 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 38642 2-bromo-1-methyl-4-nitrobenzene 7745-93-9 C7H6BrNO2 详情 详情
(II) 16593 Phenylboronic acid;Benzeneboronic acid;Phenylboron dihydroxide 98-80-6 C6H7BO2 详情 详情
(III) 38643 2-methyl-5-nitro-1,1'-biphenyl C13H11NO2 详情 详情
(IV) 38644 5-nitro[1,1'-biphenyl]-2-carboxylic acid C13H9NO4 详情 详情
(V) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(VI) 38645 methyl (2S)-4-(methylsulfanyl)-2-[[(5-nitro[1,1'-biphenyl]-2-yl)carbonyl]amino]butanoate C19H20N2O5S 详情 详情
(VII) 38656 2,2,2-trichloroethyl (3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-1-piperidinecarboxylate C9H14Cl3NO5 详情 详情
(VIII) 17953 tert-butyl (1R)-1-formyl-2-(tritylsulfanyl)ethylcarbamate C27H29NO3S 详情 详情
(IX) 38647 methyl (2S)-2-[[(5-[[(2R)-2-[(tert-butoxycarbonyl)amino]-3-(tritylsulfanyl)propyl]amino][1,1'-biphenyl]-2-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C46H51N3O5S2 详情 详情

合成路线2

该中间体在本合成路线中的序号:(VII)

The reductive condensation of N-Boc-L-isoleucinal (I) with glycine methyl ester (II) using sodium triacetoxyborohydride afforded secondary amine (III), which was further reductively condensed with 1-naphthaldehyde (IV), yielding tertiary amine (V). After basic hydrolysis of the methyl ester group of (V), the resulting carboxylic acid (VI) was coupled with L-methionine methyl ester (VII) by means of EDC and HOBt to give peptide (VIII). Subsequent deprotection of the Boc group of (VII) with HCl in cold EtOAc furnished the required intermediate (IX).

1 Anthony, N.J.; Desolms, S.J.; Gomez, R.P.; Graham, S.L.; Hutchinson, J.H.; Stokker, G.E. (Merck & Co., Inc.); Thio-free inhibitors of farnesyl-protein transferase. JP 1998508005; US 5652257; WO 9610034 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 34733 tert-butyl (1S,2S)-1-formyl-2-methylbutylcarbamate C11H21NO3 详情 详情
(II) 17568 methyl 2-aminoacetate C3H7NO2 详情 详情
(III) 34734 methyl 2-([(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl]amino)acetate C14H28N2O4 详情 详情
(IV) 12314 1-Naphthaldehyde 66-77-3 C11H8O 详情 详情
(V) 34735 methyl 2-[[(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl](1-naphthylmethyl)amino]acetate C25H36N2O4 详情 详情
(VI) 34736 2-[[(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl](1-naphthylmethyl)amino]acetic acid C24H34N2O4 详情 详情
(VII) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(VIII) 34737 methyl (6S,12S)-2,2-dimethyl-6-[(1S)-1-methylpropyl]-12-[2-(methylsulfanyl)ethyl]-8-(1-naphthylmethyl)-4,10-dioxo-3-oxa-5,8,11-triazatridecan-13-oate C30H45N3O5S 详情 详情
(IX) 34738 methyl (2S)-2-([2-[[(2S,3S)-2-amino-3-methylpentyl](1-naphthylmethyl)amino]acetyl]amino)-4-(methylsulfanyl)butanoate C25H37N3O3S 详情 详情

合成路线3

该中间体在本合成路线中的序号:(VII)

The reductive condensation of N-Boc-L-isoleucinal (I) with glycine methyl ester (II) using sodium triacetoxyborohydride afforded secondary amine (III), which was further reductively condensed with 1-naphthaldehyde (IV), yielding tertiary amine (V). After basic hydrolysis of the methyl ester group of (V), the resulting carboxylic acid (VI) was coupled with L-methionine methyl ester (VII) by means of EDC and HOBt to give peptide (VIII). Subsequent deprotection of the Boc group of (VIII) with HCl in cold EtOAc furnished the required intermediate (IX).

1 Anthony, N.J.; Desolms, S.J.; Gomez, R.P.; Graham, S.L.; Hutchinson, J.H.; Stokker, G.E. (Merck & Co., Inc.); Thio-free inhibitors of farnesyl-protein transferase. JP 1998508005; US 5652257; WO 9610034 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 34733 tert-butyl (1S,2S)-1-formyl-2-methylbutylcarbamate C11H21NO3 详情 详情
(II) 17568 methyl 2-aminoacetate C3H7NO2 详情 详情
(III) 34734 methyl 2-([(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl]amino)acetate C14H28N2O4 详情 详情
(IV) 12314 1-Naphthaldehyde 66-77-3 C11H8O 详情 详情
(V) 34735 methyl 2-[[(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl](1-naphthylmethyl)amino]acetate C25H36N2O4 详情 详情
(VI) 34736 2-[[(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl](1-naphthylmethyl)amino]acetic acid C24H34N2O4 详情 详情
(VII) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(VIII) 34737 methyl (6S,12S)-2,2-dimethyl-6-[(1S)-1-methylpropyl]-12-[2-(methylsulfanyl)ethyl]-8-(1-naphthylmethyl)-4,10-dioxo-3-oxa-5,8,11-triazatridecan-13-oate C30H45N3O5S 详情 详情
(IX) 34738 methyl (2S)-2-([2-[[(2S,3S)-2-amino-3-methylpentyl](1-naphthylmethyl)amino]acetyl]amino)-4-(methylsulfanyl)butanoate C25H37N3O3S 详情 详情

合成路线4

该中间体在本合成路线中的序号:(IV)

Treatment of 3-nitro-1,8-naphthalic anhydride (I) with mercuric oxide and aqueous sodium acetate, and then with refluxing concentrated HCl provided a mixture of decarboxylation products (II) and (III). Condensation of this mixture with L-methionine methyl ester (IV) in the presence of dicyclohexylcarbodiimide and 1-hydroxybenzotriazole, followed by chromatographic separation of isomers, yielded the desired 6-nitronaphthalenecarboxamide (V). Further reduction of the nitro group with SnCl2 in ethanol gave amine (VI), which was reductively condensed with S-triphenylmethyl-N-Boc-cysteinal (VII) in the presence of sodium cyanoborohydride, acetic acid, and molecular sieves to afford (VIII). Then, hydrolysis of methyl ester with lithium hydroxide in THF-water gave acid (IX), and finally, deprotection of trityl and tert-butoxycarbonyl groups with an excess of trifluoroacetic acid in the presence of ethanedithiol provided the title compound as the trifluoroacetate salt.

1 Ito, Y.; Kato, H.; Yasuda, S.; Iwasaki, N.; Nishino, H.; Takeshita, M. (Hokuriku Seiyaku Co., Ltd.); Benzamide deriv.. EP 0640601; US 5395832; US 5500422; WO 9214705 .
2 Baudoin, B.; Burns, C.; Commercon, A.; Guitton, J.-D. (Aventis Pharma SA); Novel farnesyl transferase inhibitors, their preparation and pharmaceutical compsns. containing same. JP 1998501259; WO 9534535 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 15864 5-nitro-1H,3H-benzo[de]isochromene-1,3-dione; 3-Nitro-1,8-naphthalic anhydride 3027-38-1 C12H5NO5 详情 详情
(II) 17948 6-nitro-1-naphthoic acid C11H7NO4 详情 详情
(III) 17949 3-nitro-1-naphthoic acid 4507-84-0 C11H7NO4 详情 详情
(IV) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(V) 17951 methyl (2S)-4-(methylsulfanyl)-2-[(6-nitro-1-naphthoyl)amino]butanoate C17H18N2O5S 详情 详情
(VI) 17952 methyl (2S)-2-[(6-amino-1-naphthoyl)amino]-4-(methylsulfanyl)butanoate C17H20N2O3S 详情 详情
(VII) 17953 tert-butyl (1R)-1-formyl-2-(tritylsulfanyl)ethylcarbamate C27H29NO3S 详情 详情
(VIII) 17954 methyl (2S)-2-[(6-[[(2R)-2-[(tert-butoxycarbonyl)amino]-3-(tritylsulfanyl)propyl]amino]-1-naphthoyl)amino]-4-(methylsulfanyl)butanoate C44H49N3O5S2 详情 详情
(IX) 17955 (2S)-2-[(6-[[(2R)-2-[(tert-butoxycarbonyl)amino]-3-(tritylsulfanyl)propyl]amino]-1-naphthoyl)amino]-4-(methylsulfanyl)butyric acid C43H47N3O5S2 详情 详情

合成路线5

该中间体在本合成路线中的序号:(V)

The condensation of 2-bromo-4-nitrotoluene (I) with phenylboronic acid (II) by means of Pd(OAc)2 in aqueous acetone gives the biphenyl (III), which is oxidized with KMnO4 in aqueous pyridine yielding the biphenyl-2-carboxylic acid (IV). The condensation of (IV) with L-methionine methyl ester (V) by means of EDC and HOBT affords the amide (VI), which is reduced with SnCl2 to give the 5-aminobiphenyl derivative (VII). The reductocondensation of (VII) with N-(tert-butoxycarbonyl)-S-trityl-L-cysteinal (VIII) by means of NaBH3CN affords the secondary amine (IX), which is finally deprotected and hydrolyzed first with LiOH and THF and then with TFA and Et3SiH in dichloromethane to furnish the target free acid.

1 Fossum, R.D.; Marugan, J.J.; Vogt, A.; Qian, Y.; Sebti, S.M.; Hamilton, A.D.; Probing the hydrophobic pocket of farnesyltransferase: Aromatic substitution of CAAX peptidomimetics leads to highly potent inhibitors. Bioorg Med Chem 1999, 7, 12, 3011.
2 Sebti, S.; Hamilton, A. (University of Pittsburgh); Inhibitors of prenyl transferases. JP 1998512266; WO 9621456 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 38642 2-bromo-1-methyl-4-nitrobenzene 7745-93-9 C7H6BrNO2 详情 详情
(II) 16593 Phenylboronic acid;Benzeneboronic acid;Phenylboron dihydroxide 98-80-6 C6H7BO2 详情 详情
(III) 38643 2-methyl-5-nitro-1,1'-biphenyl C13H11NO2 详情 详情
(IV) 38644 5-nitro[1,1'-biphenyl]-2-carboxylic acid C13H9NO4 详情 详情
(V) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(VI) 38645 methyl (2S)-4-(methylsulfanyl)-2-[[(5-nitro[1,1'-biphenyl]-2-yl)carbonyl]amino]butanoate C19H20N2O5S 详情 详情
(VII) 38656 2,2,2-trichloroethyl (3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-1-piperidinecarboxylate C9H14Cl3NO5 详情 详情
(VIII) 17953 tert-butyl (1R)-1-formyl-2-(tritylsulfanyl)ethylcarbamate C27H29NO3S 详情 详情
(IX) 38647 methyl (2S)-2-[[(5-[[(2R)-2-[(tert-butoxycarbonyl)amino]-3-(tritylsulfanyl)propyl]amino][1,1'-biphenyl]-2-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C46H51N3O5S2 详情 详情

合成路线6

该中间体在本合成路线中的序号:(III)

L-5,5-Dimethylthiazolidine-4-carboxylic acid (I) was protected as the N-Boc derivative (II) by treatment with Boc2O and subsequently coupled with L-methionine methyl ester (III) employing EDC and HOBt. The resulting Boc-dipeptide (IV) was then deprotected with trifluoroacetic acid to give (V). On the other hand, Boc-isoleucine (VI) was converted to the N-methoxy amide (VII) by condensation with N,O-dimethylhydroxylamine in the presence of O-benzotriazolyl tetramethyluronium hexafluorophosphate. Reduction of (VII) with LiAlH4 in cold Et2O produced the corresponding aldehyde (VIII). Reductive condensation of thiazolidine (V) with aldehyde (VIII) yielded adduct (IX). The Boc group of (IX) was then deprotected with trifluoroacetic acid to give (X).

1 Dong, Z.X.; Kim, S.H. (Biomeasure Inc.); Inhibitors of prenyl transferases. WO 9800409 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 34776 (4R)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid 72778-00-8 C6H11NO2S 详情 详情
(II) 34777 (4R)-3-(tert-butoxycarbonyl)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid C11H19NO4S 详情 详情
(III) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(IV) 38786 tert-butyl (4R)-4-([[(1S)-1-(methoxycarbonyl)-3-(methylsulfanyl)propyl]amino]carbonyl)-5,5-dimethyl-1,3-thiazolidine-3-carboxylate C17H30N2O5S2 详情 详情
(V) 38787 methyl (2S)-2-([[(4R)-5,5-dimethyl-1,3-thiazolidin-4-yl]carbonyl]amino)-4-(methylsulfanyl)butanoate C12H22N2O3S2 详情 详情
(VI) 30009 (2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentanoic acid 13139-16-7 C11H21NO4 详情 详情
(VII) 38788 tert-butyl (1S,2S)-1-[[methoxy(methyl)amino]carbonyl]-2-methylbutylcarbamate 3350-19-4 C13H26N2O4 详情 详情
(VIII) 34733 tert-butyl (1S,2S)-1-formyl-2-methylbutylcarbamate C11H21NO3 详情 详情
(IX) 38789 methyl (2S)-2-[[((4R)-3-[(2S,3S)-2-[(tert-butoxycarbonyl)amino]-3-methylpentyl]-5,5-dimethyl-1,3-thiazolidin-4-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C23H43N3O5S2 详情 详情
(X) 38790 methyl (2S)-2-[([(4R)-3-[(2S,3S)-2-amino-3-methylpentyl]-5,5-dimethyl-1,3-thiazolidin-4-yl]carbonyl)amino]-4-(methylsulfanyl)butanoate C18H35N3O3S2 详情 详情

合成路线7

该中间体在本合成路线中的序号:(VI)

5-Bromo-2-furoic acid (I) was converted to the mixed anhydride with isobutyl chloroformate and then reduced to alcohol (II) using NaBH4. After formation of the sodium alkoxide of (II) with NaH, condensation with chloride (III) in the presence of 15-crown-5 provided ether (IV). Hydrolysis of the methyl ester of (IV), followed by coupling of the resulting carboxylic acid (V) with L-methionine methyl ester (VI) gave amide (VII). Further Suzuki coupling of (VII) with 4-chlorophenyl boronic acid (VIII) produced the aryl-substituted furan (IX). Finally, hydrolysis of the methionine methyl ester of (IX) with LiOH, followed by lyophilization furnished the corresponding lithium carboxylate salt.

1 Augeri, D.J.; Kalvin, D.; Anowick, D.; et al.; Potent and orally bioavailable noncysteine-containing inhibitors of protein farnesyltransferase. Bioorg Med Chem Lett 1999, 9, 8, 1069.
2 Donner, B.G.; Janowick, D.A.; Larsen, J.J.; Rosenberg, S.H.; Hamilton, A.D.; Barr, K.J.; Sorensen, B.K.; Augeri, D.J.; Kalvin, D.M.; O'Connor, S.J.; Fakhoury, S.A.; Swenson, R.E.; Liu, G.; Sebti, S.M.; Shen, W. (University of Pittsburgh); Inhibitors of protein isoprenyl transferases. EP 0986384; WO 9850029; WO 9850030; WO 9850031 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 31326 5-bromo-2-furoic acid 585-70-6 C5H3BrO3 详情 详情
(II) 31327 (5-bromo-2-furyl)methanol C5H5BrO2 详情 详情
(III) 31328 methyl 5-(chloromethyl)-2'-methyl[1,1'-biphenyl]-2-carboxylate C16H15ClO2 详情 详情
(IV) 31329 methyl 5-[[(5-bromo-2-furyl)methoxy]methyl]-2'-methyl[1,1'-biphenyl]-2-carboxylate C21H19BrO4 详情 详情
(V) 31330 5-[[(5-bromo-2-furyl)methoxy]methyl]-2'-methyl[1,1'-biphenyl]-2-carboxylic acid C20H17BrO4 详情 详情
(VI) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(VII) 31331 methyl (2S)-2-[[(5-[[(5-bromo-2-furyl)methoxy]methyl]-2'-methyl[1,1'-biphenyl]-2-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C26H28BrNO5S 详情 详情
(VIII) 17575 4-chlorophenylboronic acid 1679-18-1 C6H6BClO2 详情 详情
(IX) 31332 methyl (2S)-2-([[5-([[5-(4-chlorophenyl)-2-furyl]methoxy]methyl)-2'-methyl[1,1'-biphenyl]-2-yl]carbonyl]amino)-4-(methylsulfanyl)butanoate C32H32ClNO5S 详情 详情

合成路线8

该中间体在本合成路线中的序号:(I)

Amide (III) was prepared by acylation of L-methionine methyl ester (I) with 3-(chloromethyl)benzoyl chloride (II). Displacement of the halogen atom of (III) with LiN3 gave azide (IV), which was reduced to amine (V) by catalytic hydrogenation in the presence of Pd/C. Reductive coupling of (V) with protected imidazole-4-carboxaldehyde (VI) provided the (imidazolylmethyl)amine (VII), and a second reductive coupling of (VII) with benzaldehyde (VIII) furnished the trisubstituted amine (IX). The regioselective imidazole alkylation of (IX) with bromide (X), followed by trityl group deprotection with trifluoroacetic acid yielded (XI). Finally, the methyl ester group of (XI) was hydrolyzed with methanolic NaOH to afford the title carboxylic acid.

1 Ciccarone, T.M.; MacTough, S.C.; Williams, T.M.; et al.; Non-thiol 3-aminomethylbenzamide inhibitor of farnesyl-protein transferase. Bioorg Med Chem Lett 1999, 9, 14, 1991.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(II) 25107 3-(chloromethyl)benzoyl chloride 63024-77-1 C8H6Cl2O 详情 详情
(III) 33729 methyl (2S)-2-[[3-(chloromethyl)benzoyl]amino]-4-(methylsulfanyl)butanoate C14H18ClNO3S 详情 详情
(IV) 33730 methyl (2S)-2-[[3-(azidomethyl)benzoyl]amino]-4-(methylsulfanyl)butanoate C14H18N4O3S 详情 详情
(V) 33731 methyl (2S)-2-[[3-(aminomethyl)benzoyl]amino]-4-(methylsulfanyl)butanoate C14H20N2O3S 详情 详情
(VI) 27712 1-trityl-1H-imidazole-4-carbaldehyde;1-Tritylimidazole-4-carboxaldehyde 33016-47-6 C23H18N2O 详情 详情
(VII) 33732 methyl (2S)-4-(methylsulfanyl)-2-[[3-([[(1-trityl-1H-imidazol-4-yl)methyl]amino]methyl)benzoyl]amino]butanoate C37H38N4O3S 详情 详情
(VIII) 17552 4-formylbenzonitrile; 4-Cyanobenzaldehyde 105-07-7 C8H5NO 详情 详情
(IX) 33733 methyl (2S)-2-[[3-([(4-cyanobenzyl)[(1-trityl-1H-imidazol-4-yl)methyl]amino]methyl)benzoyl]amino]-4-(methylsulfanyl)butanoate C45H43N5O3S 详情 详情
(X) 14200 4-(Bromomethyl)benzonitrile; alpha-Bromo-p-tolunitrile 17201-43-3 C8H6BrN 详情 详情
(XI) 33734 methyl (2S)-2-([3-[((4-cyanobenzyl)[[1-(4-cyanobenzyl)-1H-imidazol-5-yl]methyl]amino)methyl]benzoyl]amino)-4-(methylsulfanyl)butanoate C34H34N6O3S 详情 详情

合成路线9

该中间体在本合成路线中的序号:(VIII)

Condensation of 3-aminopyridine (I) with benzaldehyde (II) in refluxing toluene with azeotropic removal of water produced imine (III), which was reduced to amine (IV) using ethanolic NaBH4. Subsequent alkylation of (IV) with methyl 4-bromomethyl-2-(2-methylphenyl)benzoate (V) in the presence of n-BuLi in cold THF yielded the tertiary amine (VI). Basic hydrolysis of the ester group of (VI), followed by EDC-promoted coupling of the resulting carboxylic acid (VII) with L-methionine methyl ester (VIII) afforded amide (IX). The title compound was finally obtained by saponification of the methyl ester group of (IX) by means of LiOH.

1 Wang, L.; Barr, K.J.; O'Connor, S.; et al.; Second-generation peptidomimetic inhibitors of protein farnesyltransferase demonstrating improved cellular potency and significant in vivo efficacy. J Med Chem 1999, 42, 18, 3701.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 33327 3-Pyridinylamine; 3-Aminopyridine; 3-Pyridinamine 462-08-8 C5H6N2 详情 详情
(II) 10498 Benzaldehyde;Benzoic aldehyde;Phenylmethanal 100-52-7 C7H6O 详情 详情
(III) 35752 N-[(Z)-benzylidene]-N-(3-pyridinyl)amine; N-[(Z)-benzylidene]-3-pyridinamine C12H10N2 详情 详情
(IV) 35753 N-benzyl-N-(3-pyridinyl)amine; N-benzyl-3-pyridinamine C12H12N2 详情 详情
(V) 35754 ethyl 5-(bromomethyl)-2'-methyl[1,1'-biphenyl]-2-carboxylate C17H17BrO2 详情 详情
(VI) 35755 ethyl 5-[[benzyl(3-pyridinyl)amino]methyl]-2'-methyl[1,1'-biphenyl]-2-carboxylate C29H28N2O2 详情 详情
(VII) 35756 5-[[benzyl(3-pyridinyl)amino]methyl]-2'-methyl[1,1'-biphenyl]-2-carboxylic acid C27H24N2O2 详情 详情
(VIII) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(IX) 35757 methyl (2S)-2-[[(5-[[benzyl(3-pyridinyl)amino]methyl]-2'-methyl[1,1'-biphenyl]-2-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C33H35N3O3S 详情 详情

合成路线10

该中间体在本合成路线中的序号:(VII)

Palladium-catalyzed coupling of dimethyl iodoterephthalate (I) with 2-methylphenylboronic acid (II) furnished the biphenyl derivative (III). Regioselective ester hydrolysis of (III) under controlled conditions provided the mono acid (IV), which was further reduced to alcohol (V) using borane in THF. After hydrolysis of the remaining ester function of (V), the resulting carboxylic acid (VI) was coupled to L-methionine methyl ester (VII), yielding amide (VIII). Swern oxidation of the alcohol function of (VIII) gave aldehyde (IX). This was then subjected to a reductive amination with amine (X) in the presence of NaBH(OAc)3 to afford the secondary amine (XI). The methyl ester group of (XI) was finally hydrolyzed with LiOH.

1 Tasker, A.S.; Wasicak, J.; Henry, K.J. Jr.; et al.; PDB-093. Drug Data Rep 1995, 17, 2, 138.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(VIIII) 43757 methyl (2S)-2-([[5-(hydroxymethyl)-2'-methyl[1,1'-biphenyl]-2-yl]carbonyl]amino)-4-(methylsulfanyl)butanoate C21H25NO4S 详情 详情
(I) 38996 dimethyl 2-iodoterephthalate C10H9IO4 详情 详情
(II) 38997 2-methylphenylboronic acid 16419-60-6 C7H9BO2 详情 详情
(III) 38998 dimethyl 2'-methyl[1,1'-biphenyl]-2,5-dicarboxylate C17H16O4 详情 详情
(IV) 38999 6-(methoxycarbonyl)-2'-methyl[1,1'-biphenyl]-3-carboxylic acid C16H14O4 详情 详情
(V) 39000 methyl 5-(hydroxymethyl)-2'-methyl[1,1'-biphenyl]-2-carboxylate C16H16O3 详情 详情
(VI) 43756 5-(hydroxymethyl)-2'-methyl[1,1'-biphenyl]-2-carboxylic acid C15H14O3 详情 详情
(VII) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(IX) 43758 methyl (2S)-2-[[(5-formyl-2'-methyl[1,1'-biphenyl]-2-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C21H23NO4S 详情 详情
(X) 43759 (2S)-1-cyclohexyl-3-(ethylsulfanyl)-2-propanamine; (1S)-2-cyclohexyl-1-[(ethylsulfanyl)methyl]ethylamine C11H23NS 详情 详情
(XI) 43760 methyl (2S)-2-[([5-[([(1S)-2-cyclohexyl-1-[(ethylsulfanyl)methyl]ethyl]amino)methyl]-2'-methyl[1,1'-biphenyl]-2-yl]carbonyl)amino]-4-(methylsulfanyl)butanoate C32H46N2O3S2 详情 详情

合成路线11

该中间体在本合成路线中的序号:(XII)

Cyclohexylacetic acid (VII) was converted to acid chloride and then condensed with n-butyl amine to give amide (VIII). Reduction of (VIII) with LiAlH4 afforded secondary amine (IX), which was alkylated with bromide (VI) yielding amino ester (X). After basic hydrolysis of the ester group of (X), the resultant carboxylic acid (XI) was coupled with L-methionine methyl ester (XII) to produce amide (XIII). The methyl ester group of (XIII) was finally hydrolyzed by treatment with LiOH.

1 Donner, B.G.; Janowick, D.A.; Larsen, J.J.; Rosenberg, S.H.; Hamilton, A.D.; Barr, K.J.; Sorensen, B.K.; Augeri, D.J.; Kalvin, D.M.; O'Connor, S.J.; Fakhoury, S.A.; Swenson, R.E.; Liu, G.; Sebti, S.M.; Shen, W. (University of Pittsburgh); Inhibitors of protein isoprenyl transferases. EP 0986384; WO 9850029; WO 9850030; WO 9850031 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(VI) 39001 methyl 5-(bromomethyl)-2'-methyl[1,1'-biphenyl]-2-carboxylate C16H15BrO2 详情 详情
(VII) 39002 2-cyclohexylacetic acid 5292-21-7 C8H14O2 详情 详情
(VIII) 39003 N-butyl-2-cyclohexylacetamide C12H23NO 详情 详情
(IX) 39004 N-(2-cyclohexylethyl)-1-butanamine; N-butyl-N-(2-cyclohexylethyl)amine C12H25N 详情 详情
(X) 39005 methyl 5-[[butyl(2-cyclohexylethyl)amino]methyl]-2'-methyl[1,1'-biphenyl]-2-carboxylate C28H39NO2 详情 详情
(XI) 39006 5-[[butyl(2-cyclohexylethyl)amino]methyl]-2'-methyl[1,1'-biphenyl]-2-carboxylic acid C27H37NO2 详情 详情
(XII) 17950 D-Methionine methyl ester; methyl (2S)-2-amino-4-(methylsulfanyl)butanoate hydrochloride 21691-49-6 C6H13NO2S 详情 详情
(XIII) 39007 methyl (2S)-2-[[(5-[[butyl(2-cyclohexylethyl)amino]methyl]-2'-methyl[1,1'-biphenyl]-2-yl)carbonyl]amino]-4-(methylsulfanyl)butanoate C33H48N2O3S 详情 详情
Extended Information