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【结 构 式】

【分子编号】48401

【品名】methyl (4S)-4-(3,4-difluorophenyl)-3-(1H-imidazol-1-ylcarbonyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate

【CA登记号】

【 分 子 式 】C18H16F2N4O5

【 分 子 量 】406.3458064

【元素组成】C 53.21% H 3.97% F 9.35% N 13.79% O 19.69%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(XXXIV)

In a related synthetic method, condensation between 4-methoxyacetoacetate (XIV), 3,4-difluorobenzaldehyde (XVII) and urea (XXIX) in the presence of copper acetate and boron trifluoride etherate furnished the racemic pyrimidinone (XXX). Enzymatic resolution of (XXX) by incubation with subtilisin yielded a separable mixture of the (R)-acid (XXXII) and the unreacted (S)-ester (XXXI). Alternatively, the (S)-enantiomer (XXXI) was isolated by chiral preparative HPLC. Pyrimidinone (XXXI) was activated by conversion to either aryl carbamate (XXXIII) using 4-nitrophenyl chloroformate or to imidazolide (XXXIV) with carbonyl diimidazole. Finally, coupling of the intermediate amine (X) with either the carbamate (XXXIII) or the imidazolide (XXXIV) furnished the title compound.

1 O'Malley, S.S.; Chen, T.-B.; Chang, R.S.L.; et al.; In vitro studies on L-771,688 (SNAP 6383), a new potent and selective alpha1A-adrenoceptor antagonist. Eur J Pharmacol 2000, 409, 3, 301.
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 Evans, B.; Dunn, M.; Lagu, B.; Kari, H.P.; Nagarathnam, D.; Vyas, K.P.; Cui, D.; Davis, M.R.; Zhang, K. (Merck & Co., Inc.; Synaptic Pharmaceutical Corp.); Dihydropyrimidines and uses thereof. WO 0037026 .
4 Ikemoto, N.; Taylor, C.S.; Sidler, D.R.; Chartrain, M.; Bills, G.F.; Roberge, C.M.; Li, W.; Larsen, R.D. (Merck & Co., Inc.); alpha 1a Adrenergic receptor antagonist. WO 9907695 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(X) 48387 3-[4-(2-pyridinyl)-1-piperidinyl]propylamine; 3-[4-(2-pyridinyl)-1-piperidinyl]-1-propanamine C13H21N3 详情 详情
(XIV) 26655 methyl 4-methoxy-3-oxobutanoate;Methyl 4-methoxyacetoacetate;Methyl 4-methoxy-3-oxo-butanoate 41051-15-4 C6H10O4 详情 详情
(XVII) 26654 3,4-difluorobenzaldehyde 34036-07-2 C7H4F2O 详情 详情
(XXIX) 19310 urea 57-13-6 CH4N2O 详情 详情
(XXX) 39303 methyl 4-(3,4-difluorophenyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C14H14F2N2O4 详情 详情
(XXXI) 48402 methyl (4S)-4-(3,4-difluorophenyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C14H14F2N2O4 详情 详情
(XXXII) 39304 methyl (4R)-4-(3,4-difluorophenyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C14H14F2N2O4 详情 详情
(XXXIII) 48400 5-methyl 1-(4-nitrophenyl) (6S)-6-(3,4-difluorophenyl)-4-(methoxymethyl)-2-oxo-3,6-dihydro-1,5(2H)-pyrimidinedicarboxylate C21H17F2N3O8 详情 详情
(XXXIV) 48401 methyl (4S)-4-(3,4-difluorophenyl)-3-(1H-imidazol-1-ylcarbonyl)-6-(methoxymethyl)-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate C18H16F2N4O5 详情 详情
Extended Information