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【结 构 式】

【分子编号】20935

【品名】dibenzyl 4-phenylbutylphosphonate

【CA登记号】

【 分 子 式 】C24H27O3P

【 分 子 量 】394.450342

【元素组成】C 73.08% H 6.9% O 12.17% P 7.85%

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:(IX)

This compound can be obtained by two related ways: 1) The reaction of L-lysine (I) with NaNO2 - H2SO4 in water gives 6-amino-2(S)-hydroxyhexanoic acid (II), which is protected with benzyl chloroformate as usual yielding the N-benzyloxycarbonyl compound (III). The condensation of (III) with L-proline benzyl ester (IV) by means of hydroxybenzotriazole (HBT) and dicyclohexylcarbodiimide (DCC) affords the acylated proline ester (V), which is esterified with 4-phenylbutylphosphonous acid (VI) by means of DCC and dimethylaminopyridine (DMAP), and oxidized with NaIO4 to give the protected phosphonic ester (VIII). Finally, this compound is debenzylated by hydrogenation of Pd/C in methanol. The phosphonous acid (VI) is obtained by reaction of 4-phenyl-1-butene (VII) with sodium hypophosphite by means of azobisisobutyronitrile (AIBN). 2) The condensation of acylated proline ester (V) with dibenzyl 4-phenylbutylphosphonate (IX) by means of PCl5, triethylamine and DMAP also gives the protected phosphonic ester (VIII). The dibenzyl phosphonate (IX) is obtained by condensation of 4-phenylbutyl chloride (X) with dibenzyl phosphite (XI) by means of NaH in DMF.

1 Karanewsky, D.S.; Petrillo, E.W. Jr. (E.R. Squibb & Sons, Inc.); Orally active phosphonyl hydroxyacyl prolines and processes for preparing phosphonyl hydroxyacyl prolines. AU 8666133; EP 0229520; JP 1987164691; US 4745196 .
2 Prous, J.; Castaner, J.; SQ-29852. Drugs Fut 1989, 14, 6, 533.
3 Powell, J.R.; Karanewsky, D.S.; Dejneka, T.; DeForrest, J.M.; Petrillo, E.W. Jr.; Perri, M.G.; Badia, M.C.; Loots, M.J.; Cushman, D.W.; (Phosphinyloxy)acyl amino acid inhibitors of angiotensin converting enzyme (ACE). 1. Discovery of (S)-1-[6-amino-2-[[hydroxy(4-phenylbutyl)phosphinyl]oxy]-1-oxohexyl]-L-proline, a novel orally acting inhibitor of ACE. J Med Chem 1988, 31, 1, 204.
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) 20927 L-lysine 56-87-1 C6H14N2O2 详情 详情
(II) 20928 (2S)-6-amino-2-hydroxyhexanoic acid C6H13NO3 详情 详情
(III) 20929 (2S)-6-[[(benzyloxy)carbonyl]amino]-2-hydroxyhexanoic acid C14H19NO5 详情 详情
(IV) 20930 benzyl (2S)-2-pyrrolidinecarboxylate 16652-71-4 C12H15NO2 详情 详情
(V) 20931 benzyl (2S)-1-((2S)-6-[[(benzyloxy)carbonyl]amino]-2-hydroxyhexanoyl)-2-pyrrolidinecarboxylate C26H32N2O6 详情 详情
(VI) 20932 4-phenylbutylphosphinic acid C10H15O2P 详情 详情
(VII) 20933 1-(3-butenyl)benzene 768-56-9 C10H12 详情 详情
(VIII) 20934 benzyl (2S)-1-((2S)-6-[[(benzyloxy)carbonyl]amino]-2-[[hydroxy(4-phenylbutyl)phosphoryl]oxy]hexanoyl)-2-pyrrolidinecarboxylate C36H45N2O8P 详情 详情
(IX) 20935 dibenzyl 4-phenylbutylphosphonate C24H27O3P 详情 详情
(X) 20936 1-(4-chlorobutyl)benzene 4830-93-7 C10H13Cl 详情 详情
(XI) 12507 dibenzyl phosphonate; Dibenzyl phosphite 17176-77-1 C14H15O3P 详情 详情
Extended Information