• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】39302

【品名】3-[4-(4-fluorophenyl)-1-piperidinyl]propylamine; 3-[4-(4-fluorophenyl)-1-piperidinyl]-1-propanamine

【CA登记号】

【 分 子 式 】C14H21FN2

【 分 子 量 】236.3326232

【元素组成】C 71.15% H 8.96% F 8.04% N 11.85%

与该中间体有关的原料药合成路线共 4 条

合成路线1

该中间体在本合成路线中的序号:(V)

Catalytic hydrogenation of tetrahydropyridine (I) produced piperidine (II). Alkylation of (II) with N-(3-bromopropyl)phthalimide (III) gave (IV). Subsequent hydrazinolysis of the phthalimido group of (IV) yielded amine (V). In a related procedure, piperidine (II) was alkylated with N-Boc-3-bromopropylamine (VI) to give (VII), which was deprotected with HCl in EtOAc to give the diamino precursor (V).

1 Rittle, K.; et al.; Dihydropyrimidinone C-5 amides as potent and selective alpha1A receptor antagonists. 219th ACS Natl Meet (March 26 2000, San Francisco) 2000, Abst MEDI 90.
2 Selnick, H.G.; Barrow, J.C.; Nanterment, P.G.; et al.; In vitro and in vivo evaluation of dihydropyrimidinone C-5 amides as potent and selective alpha1A receptor antagonists for the treatment of benign prostatic hyperplasia. J Med Chem 2000, 43, 14, 2703.
3 Selnick, H.G.; Nantermet, P.G.; Barrow, J.C. (Merck & Co., Inc.); alpha1a Adrenergic receptor antagonists. WO 0006565 .
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) 23465 4-(4-fluorophenyl)-1,2,3,6-tetrahydropyridine 1978-59-2 C11H12FN 详情 详情
(II) 39299 4-(4-fluorophenyl)piperidine 37656-48-7 C11H14FN 详情 详情
(III) 15216 N-(3-Bromopropyl)phthalimide; 2-(3-bromopropyl)-1H-isoindole-1,3(2H)-dione 5460-29-7 C11H10BrNO2 详情 详情
(IV) 39300 2-[3-[4-(4-fluorophenyl)-1-piperidinyl]propyl]-1H-isoindole-1,3(2H)-dione C22H23FN2O2 详情 详情
(V) 39302 3-[4-(4-fluorophenyl)-1-piperidinyl]propylamine; 3-[4-(4-fluorophenyl)-1-piperidinyl]-1-propanamine C14H21FN2 详情 详情
(VI) 37752 tert-butyl 3-bromopropylcarbamate C8H16BrNO2 详情 详情
(VII) 39301 tert-butyl 3-[4-(4-fluorophenyl)-1-piperidinyl]propylcarbamate C19H29FN2O2 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

The cyclization between 3,4-difluorobenzaldehyde (VIII), methyl 4-methoxyacetoacetate (IX) and urea (X) in the presence of cuprous oxide and boron trifluoride etherate gave rise to racemic pyrimidinone (XI). Optical resolution of (XI) by means of chiral HPLC furnished the desired (-)-enantiomer (XII), which was then hydrolyzed to carboxylic acid (XIII). Alternatively, kinetic resolution of (XI) by enzymatic hydrolysis using subtilistin furnished the desired (-)-carboxylic acid (XIII), which was then separated from the unreacted (+)-ester. Finally, coupling of carboxylic acid (XIII) with amine (V) using EDC and HOBt yielded the title amide.

1 Rittle, K.; et al.; Dihydropyrimidinone C-5 amides as potent and selective alpha1A receptor antagonists. 219th ACS Natl Meet (March 26 2000, San Francisco) 2000, Abst MEDI 90.
2 Selnick, H.G.; Barrow, J.C.; Nanterment, P.G.; et al.; In vitro and in vivo evaluation of dihydropyrimidinone C-5 amides as potent and selective alpha1A receptor antagonists for the treatment of benign prostatic hyperplasia. J Med Chem 2000, 43, 14, 2703.
3 Selnick, H.G.; Nantermet, P.G.; Barrow, J.C. (Merck & Co., Inc.); alpha1a Adrenergic receptor antagonists. WO 0006565 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(V) 39302 3-[4-(4-fluorophenyl)-1-piperidinyl]propylamine; 3-[4-(4-fluorophenyl)-1-piperidinyl]-1-propanamine C14H21FN2 详情 详情
(VIII) 26654 3,4-difluorobenzaldehyde 34036-07-2 C7H4F2O 详情 详情
(IX) 26655 methyl 4-methoxy-3-oxobutanoate;Methyl 4-methoxyacetoacetate;Methyl 4-methoxy-3-oxo-butanoate 41051-15-4 C6H10O4 详情 详情
(X) 19310 urea 57-13-6 CH4N2O 详情 详情
(XI) 39303 methyl 4-(3,4-difluorophenyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C14H14F2N2O4 详情 详情
(XII) 39304 methyl (4R)-4-(3,4-difluorophenyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C14H14F2N2O4 详情 详情
(XIII) 39305 (4R)-4-(3,4-difluorophenyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylic acid C13H12F2N2O4 详情 详情

合成路线3

该中间体在本合成路线中的序号:(XX)

Addition of 4-fluorophenylmagnesium bromide (XIII) to 1-benzyl-4-piperidinone (XII) afforded carbinol (XIV), which was dehydrated to the tetrahydropyridine (XV) by treatment with p-toluenesulfonic acid in refluxing toluene. Hydrogenation of the olefin (XV) with concomitant benzyl group hydrogenolysis gave 4-(4-fluorophenyl)piperidine (XVI) (1). This compound was also obtained by catalytic hydrogenation of the commercially available 4-(4-fluorophenyl)-1,2,3,6-tetrahydropyridine (XVII). Alkylation of piperidine (XVI) with N-(3-bromopropyl)phthalimide (XVIII) provided adduct (XIX), which was subjected to hydrazinolysis in refluxing MeOH to furnish the primary amine (XX). Deprotonation of oxazolidine (IX) with n-butyllithium in THF at -78 C, followed by condensation with p-nitrophenyl chloroformate, gave the p-nitrophenoxycarbonyl derivative (XXI). This was finally coupled with amine (XX) to furnish the title carboxamide.

1 Tian, D.; Jeon, Y.; Lagu, B.; et al.; De novo design of a novel oxazolidinone analogue as a potent and selective alpha1A adrenergic receptor antagonist with high oral bioavailability. J Med Chem 2000, 43, 15, 2775.
2 Broten, T.P.; Nichtberger, S.A.; Siegl, P.K.S. (Merck & Co., Inc.); Combination therapy for the treatment of benign prostatic hyperplasia. WO 9948530 .
3 Marzabadi, M.R.; Wong, W.C.; Gluchowski, C.; Tian, D.; Nagarathnam, D.; Lagu, B.; Dhar, T.G.M.; Jeon, Y.T. (Synaptic Pharmaceutical Corp.); Heterocyclic substd. piperidines and uses thereof. EP 0988295; WO 9857940 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(IX) 43324 (4S,5S)-4-(3,4-difluorophenyl)-5-methyl-1,3-oxazolidin-2-one C10H9F2NO2 详情 详情
(XII) 15720 1-benzyltetrahydro-4(1H)-pyridinone; 1-Benzyl-4-piperidone; N-Benzyl-4-piperidone; 1-(benzyl)-4-piperidinone; 1-benzylpiperidin-4-one; 1-(benzyl)piperidin-4-one 3612-20-2 C12H15NO 详情 详情
(XIII) 13643 4-fluorophenyl magnesium bromide;Bromo(4-fluorophenyl)magnesium;bromo(p-fluorophenyl)Magnesium;p-Fluorophenylmagnesium bromide 352-13-6 C6H4BrFMg 详情 详情
(XIV) 15722 1-benzyl-4-(4-fluorophenyl)-4-piperidinol C18H20FNO 详情 详情
(XV) 43327 1-benzyl-4-(4-fluorophenyl)-1,2,3,6-tetrahydropyridine C18H18FN 详情 详情
(XVI) 39299 4-(4-fluorophenyl)piperidine 37656-48-7 C11H14FN 详情 详情
(XVII) 23465 4-(4-fluorophenyl)-1,2,3,6-tetrahydropyridine 1978-59-2 C11H12FN 详情 详情
(XVIII) 15216 N-(3-Bromopropyl)phthalimide; 2-(3-bromopropyl)-1H-isoindole-1,3(2H)-dione 5460-29-7 C11H10BrNO2 详情 详情
(XIX) 39300 2-[3-[4-(4-fluorophenyl)-1-piperidinyl]propyl]-1H-isoindole-1,3(2H)-dione C22H23FN2O2 详情 详情
(XX) 39302 3-[4-(4-fluorophenyl)-1-piperidinyl]propylamine; 3-[4-(4-fluorophenyl)-1-piperidinyl]-1-propanamine C14H21FN2 详情 详情
(XXI) 43328 4-nitrophenyl (4S,5S)-4-(3,4-difluorophenyl)-5-methyl-2-oxo-1,3-oxazolidine-3-carboxylate C17H12F2N2O6 详情 详情

合成路线4

该中间体在本合成路线中的序号:(XIII)

The reaction of (S)-(+)-methyl lactate (I) with pyrrolidine (II) gives the corresponding acyl pyrrolidine (III), which is silylated with Tbdms-Cl and imidazole to yield the silyl ether (IV). The condensation of (IV) with 3,4-difluorobromobenzene (V) by means of BuLi in THF affords the chiral propiophenone derivative (VI), which is treated with hydroxylamine and NaOAc in methanol to provide the corresponding oxime (VII). The reduction of (VII) with LiAlH4 in refluxing ethyl ether gives the expected amine (VIII), which is treated with (Boc)2O in chloroform, yielding the carbamate (IX). The cyclization of (IX) by means of NaH in THF gives a mixture of cis- and trans-oxazolidinones, from which the desired trans-(4S,5S)-isomer (X) is separated by flash chromatography. The reaction of (X) with 4-nitrophenyl chloroformate (XI) by means of NaH yields the oxazolidinone-carboxylate (XII), which is finally condensed with 3-[4-(4-fluorophenyl)piperidin-1-yl]propylamine (XIII) in THF to afford the target amide.

1 Lagu, B.; Wetzel, J.M.; Forray, C.; Patane, M.A.; Bock, M.G.; Determination of the relative and absolute stereochemistry of a potent and alpha1A-selective adrenoceptor antagonist. Bioorg Med Chem Lett 2000, 10, 24, 2705.
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) 17075 propionic acid, 2-hydroxy-, methyl ester, (S)-; methyl (2S)-2-hydroxypropanoate 27871-49-4 C4H8O3 详情 详情
(II) 11376 Pyrrolidine 123-75-1 C4H9N 详情 详情
(III) 17099 (2S)-2-hydroxy-1-(1-pyrrolidinyl)-1-propanone C7H13NO2 详情 详情
(IV) 51565 (2S)-2-[[tert-butyl(dimethyl)silyl]oxy]-1-(1-pyrrolidinyl)-1-propanone C13H27NO2Si 详情 详情
(V) 51566 1-Bromo-3,4-difluorobenzene; 3,4-Difluorobromobenzene; 4-Bromo-1,2-difluorobenzene 348-61-8 C6H3BrF2 详情 详情
(VI) 51567 (2S)-2-[[tert-butyl(dimethyl)silyl]oxy]-1-(3,4-difluorophenyl)-1-propanone C15H22F2O2Si 详情 详情
(VII) 51568 (2S)-2-[[tert-butyl(dimethyl)silyl]oxy]-1-(3,4-difluorophenyl)-1-propanone oxime C15H23F2NO2Si 详情 详情
(VIII) 51569 (2S)-1-amino-1-(3,4-difluorophenyl)-2-propanol C9H11F2NO 详情 详情
(IX) 51570 tert-butyl (2S)-1-(3,4-difluorophenyl)-2-hydroxypropylcarbamate C14H19F2NO3 详情 详情
(X) 43324 (4S,5S)-4-(3,4-difluorophenyl)-5-methyl-1,3-oxazolidin-2-one C10H9F2NO2 详情 详情
(XI) 16605 4-Nitrophenyl chloroformate; 1-[(Chlorocarbonyl)oxy]-4-nitrobenzene 7693-46-1 C7H4ClNO4 详情 详情
(XII) 43325 3,4-difluorobenzylamine; (3,4-difluorophenyl)methanamine 72235-53-1 C7H7F2N 详情 详情
(XIII) 39302 3-[4-(4-fluorophenyl)-1-piperidinyl]propylamine; 3-[4-(4-fluorophenyl)-1-piperidinyl]-1-propanamine C14H21FN2 详情 详情
Extended Information