【结 构 式】 |
【分子编号】26465 【品名】methyl (2S,3R)-3-cyclopropyl-2,3-dihydroxypropanoate 【CA登记号】 |
【 分 子 式 】C7H12O4 【 分 子 量 】160.16988 【元素组成】C 52.49% H 7.55% O 39.96% |
合成路线1
该中间体在本合成路线中的序号:(III)2-Amino-5-bromopyridine (I) was condensed with 1,1-thiocarbonyldiimidazole (II) in acetonitrile to furnish the precursor thiocarbonyl derivative (III). Further reaction of (III) with 2-chlorophenethylamine (IV) in DMF at 100 C gave the target thiourea.
【1】 Vig, R.; Mao, C.; Venkatachalam, T.K.; Tuel-Ahlgren, L.; Sudbeck, E.A.; Uckun, F.M.; Rational design and synthesis of phenethyl-5-bromopyridyl thiourea derivatives as potent non-nucleoside inhibitors of HIV reverse transcriptase. Bioorg Med Chem 1998, 6, 10, 1789. |
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) | 12123 | 5-Bromo-2-pyridinylamine; 5-Bromo-2-pyridinamine; 2-Amino-5-bromopyridine | 1072-97-5 | C5H5BrN2 | 详情 | 详情 |
(II) | 11990 | Di(1H-imidazol-1-yl)methanethione; 1,1'-Thiocarbonyldiimidazole | 6160-65-2 | C7H6N4S | 详情 | 详情 |
(III) | 26465 | methyl (2S,3R)-3-cyclopropyl-2,3-dihydroxypropanoate | C7H12O4 | 详情 | 详情 | |
(IV) | 31334 | 2-chlorophenethylamine; 2-(2-chlorophenyl)-1-ethanamine | 13078-80-3 | C8H10ClN | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号:(III)2-Amino-5-bromopyridine (I) was condensed with 1,1-thiocarbonyldiimidazole (II) in acetonitrile to furnish the precursor thiocarbonyl derivative (III). Further reaction of (III) with 3-chlorophenethylamine (IV) in DMF at 100 C gave the target thiourea.
【1】 Vig, R.; Mao, C.; Venkatachalam, T.K.; Tuel-Ahlgren, L.; Sudbeck, E.A.; Uckun, F.M.; Rational design and synthesis of phenethyl-5-bromopyridyl thiourea derivatives as potent non-nucleoside inhibitors of HIV reverse transcriptase. Bioorg Med Chem 1998, 6, 10, 1789. |
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) | 12123 | 5-Bromo-2-pyridinylamine; 5-Bromo-2-pyridinamine; 2-Amino-5-bromopyridine | 1072-97-5 | C5H5BrN2 | 详情 | 详情 |
(II) | 11990 | Di(1H-imidazol-1-yl)methanethione; 1,1'-Thiocarbonyldiimidazole | 6160-65-2 | C7H6N4S | 详情 | 详情 |
(III) | 26465 | methyl (2S,3R)-3-cyclopropyl-2,3-dihydroxypropanoate | C7H12O4 | 详情 | 详情 | |
(IV) | 31335 | 3-chlorophenethylamine; 2-(3-chlorophenyl)-1-ethanamine | 13078-79-0 | C8H10ClN | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号:(IV)Taxane intermediates (XIII) and (XIV) were prepared by two related ways. Wittig condensation of cyclopropanecarboxaldehyde (I) with methoxycarbonylmethylenetriphenyl phosphorane (II) gave methyl trans-cyclopropylacrylate (III). This was oxidized with potassium ferricyanide in the presence of OsO4 and the chiral catalyst 1,4-bis(9-O-dihydroquinidyl)phthalazine to furnish (2S,3R)-diol (IV). After conversion of (IV) to tosylate (V), its cyclization by means of K2CO3 produced epoxide (VI). Subsequent epoxide opening with NaN3 gave azide (VII), which was hydrogenated in the presence of Pd/C and di tert-butyl dicarbonate to furnish carbamate (VIII). Treatment of (VIII) with isopropenyl methyl ether (IX) and pyridinium tosylate, followed by ester hydrolysis, produced oxazolidine (X). This was coupled to protected taxane (XI) by means of DCC and DMAP to provide ester (XII). Oxazolidine hydrolysis in (XII) with formic acid, followed by reprotection of the amine with Boc2O, furnished intermediate (XIII). Optionally, the trichloroethoxycarbonyl groups of (XIII) were removed upon treatment with Zn and AcOH to produce intermediate (XIV).
【1】 Tsujihari, K.; Hashiyama, T.; Ohashi, M.; Nakanishi, N. (Tanabe Seiyaku Co., Ltd.); Baccatin derivs. and processes for preparing the same. CA 2162759; EP 0712854; JP 1997151181; US 5589502 . |
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) | 26463 | cyclopropanecarbaldehyde | 1489-69-6 | C4H6O | 详情 | 详情 |
(II) | 14689 | Methyl (triphenylphosphoranylidene)acetate; (methoxycarbonylmethylene)triphenylphosphorane;Methyl 2-(triphenyl-lambda(5)-phosphanylidene)acetate | 2605-67-6 | C21H19O2P | 详情 | 详情 |
(III) | 26464 | methyl (E)-3-cyclopropyl-2-propenoate | C7H10O2 | 详情 | 详情 | |
(IV) | 26465 | methyl (2S,3R)-3-cyclopropyl-2,3-dihydroxypropanoate | C7H12O4 | 详情 | 详情 | |
(V) | 26466 | methyl (2S,3R)-3-cyclopropyl-3-hydroxy-2-[[(4-methylphenyl)sulfonyl]oxy]propanoate | C14H18O6S | 详情 | 详情 | |
(VI) | 26467 | methyl (2R,3R)-3-cyclopropyl-2-oxiranecarboxylate | C7H10O3 | 详情 | 详情 | |
(VII) | 26468 | methyl (2R,3S)-3-azido-3-cyclopropyl-2-hydroxypropanoate | C7H11N3O3 | 详情 | 详情 | |
(VIII) | 26469 | methyl (2R,3S)-3-[(tert-butoxycarbonyl)amino]-3-cyclopropyl-2-hydroxypropanoate | C12H21NO5 | 详情 | 详情 | |
(IX) | 26470 | 3-methoxy-1-butene | C5H10O | 详情 | 详情 | |
(X) | 26471 | (4S,5R)-3-(tert-butoxycarbonyl)-4-cyclopropyl-2,2-dimethyl-1,3-oxazolidine-5-carboxylic acid | C14H23NO5 | 详情 | 详情 | |
(XI) | 23892 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-1,15-dihydroxy-10,14,17,17-tetramethyl-11-oxo-9,12-bis[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate | C35H38Cl6O14 | 详情 | 详情 | |
(XII) | 26472 | methyl (9S,12S)-4-methoxy-12-[[(2S,5S,8S,11R)-5-(4-methoxybenzyl)-2,6,8,11,15,15-hexamethyl-4,7,10,13-tetraoxo-14-oxa-3,6,9,12-tetraazahexadec-1-anoyl](methyl)amino]-11-oxo-2-oxa-10-azatricyclo[12.2.2.1(3,7)]nonadeca-1(16),3(19),4,6,14,17-hexaene-9-carboxylate | C49H59Cl6NO18 | 详情 | 详情 | |
(XIII) | 26473 | methyl (9S,12S)-4-methoxy-12-[[(2S,5S,8S,11R)-5-(4-methoxybenzyl)-2,6,8,11,15,15-hexamethyl-4,7,10,13-tetraoxo-14-oxa-3,6,9,12-tetraazahexadec-1-anoyl](methyl)amino]-11-oxo-2-oxa-10-azatricyclo[12.2.2.1(3,7)]nonadeca-1(16),3(19),4,6,14,17-hexaene-9-carboxylate | C46H55Cl6NO18 | 详情 | 详情 | |
(XIV) | 26474 | methyl (9S,12S)-4-methoxy-12-[[(2S,5S,8S,11R)-5-(4-methoxybenzyl)-2,6,8,11,15,15-hexamethyl-4,7,10,13-tetraoxo-14-oxa-3,6,9,12-tetraazahexadec-1-anoyl](methyl)amino]-11-oxo-2-oxa-10-azatricyclo[12.2.2.1(3,7)]nonadeca-1(16),3(19),4,6,14,17-hexaene-9-carboxylate | C40H53NO14 | 详情 | 详情 |
合成路线4
该中间体在本合成路线中的序号:(III)2-Amino-5-bromopyridine (I) was condensed with 1,1-thiocarbonyldiimidazole (II) in acetonitrile to furnish the precursor thiocarbonyl derivative (III). Further reaction of (III) with 2-fluorophenethylamine (IV) in DMF at 100 C gave the target thiourea.
【1】 Vig, R.; Mao, C.; Venkatachalam, T.K.; Tuel-Ahlgren, L.; Sudbeck, E.A.; Uckun, F.M.; Rational design and synthesis of phenethyl-5-bromopyridyl thiourea derivatives as potent non-nucleoside inhibitors of HIV reverse transcriptase. Bioorg Med Chem 1998, 6, 10, 1789. |
【2】 Uckun, F.M. (Parker Hughes Institute); NNI for treatment of multi-drug resistant HIV. WO 0056736 . |
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) | 12123 | 5-Bromo-2-pyridinylamine; 5-Bromo-2-pyridinamine; 2-Amino-5-bromopyridine | 1072-97-5 | C5H5BrN2 | 详情 | 详情 |
(II) | 11990 | Di(1H-imidazol-1-yl)methanethione; 1,1'-Thiocarbonyldiimidazole | 6160-65-2 | C7H6N4S | 详情 | 详情 |
(III) | 26465 | methyl (2S,3R)-3-cyclopropyl-2,3-dihydroxypropanoate | C7H12O4 | 详情 | 详情 | |
(IV) | 31333 | 2-fluorophenethylamine; 2-(2-fluorophenyl)-1-ethanamine | C8H10FN | 详情 | 详情 |
合成路线5
该中间体在本合成路线中的序号:(III)2-Amino-5-bromopyridine (I) was condensed with 1,1-thiocarbonyldiimidazole (II) in acetonitrile to furnish the precursor thiocarbonyl derivative (III). Further reaction of (III) with 3-fluorophenethylamine (IV) in DMF at 100 C gave the target thiourea.
【1】 Vig, R.; Mao, C.; Venkatachalam, T.K.; Tuel-Ahlgren, L.; Sudbeck, E.A.; Uckun, F.M.; Rational design and synthesis of phenethyl-5-bromopyridyl thiourea derivatives as potent non-nucleoside inhibitors of HIV reverse transcriptase. Bioorg Med Chem 1998, 6, 10, 1789. |
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) | 12123 | 5-Bromo-2-pyridinylamine; 5-Bromo-2-pyridinamine; 2-Amino-5-bromopyridine | 1072-97-5 | C5H5BrN2 | 详情 | 详情 |
(II) | 11990 | Di(1H-imidazol-1-yl)methanethione; 1,1'-Thiocarbonyldiimidazole | 6160-65-2 | C7H6N4S | 详情 | 详情 |
(III) | 26465 | methyl (2S,3R)-3-cyclopropyl-2,3-dihydroxypropanoate | C7H12O4 | 详情 | 详情 | |
(IV) | 31336 | 3-fluorophenethylamine; 2-(3-fluorophenyl)-1-ethanamine | C8H10FN | 详情 | 详情 |