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【结 构 式】

【分子编号】33925

【品名】2-[(1R,2R)-3-hydroxy-1-(4-hydroxyphenyl)-3-methyl-2-phenylbutyl]-5-methoxyphenol

【CA登记号】

【 分 子 式 】C24H26O4

【 分 子 量 】378.46804

【元素组成】C 76.17% H 6.92% O 16.91%

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:(VIII)

The Grignard reaction of trans-3-phenyl-4-p-acetoxyphenyl-7-methoxy-3,4-dihydrocoumarin (VI) with methylmagnesium iodide (A) in THF gives a mixture of cis-2,2-dimethyl-3-phenyl-4-p-hydroxy-phenyl-7-methoxychromane (VII) and threo-2-methyl-3-phenyl-4-(p-hydroxyphenyl)-4-(2-hydroxy-4-methoxyphenyl)butan-2-ol (VIII), which can be cyclized to (VII) with PPA at 75-80 C. Finally, (VII) is condensed with N-(2-chloroethyl)-pyrrolidine (B) by means of K2CO3 in refluxing acetone.

1 Suprabhat, R.; et al.; Antifertility agents. 12. Structure-activity relationship of 3,4-diphenylchromenes and -chromans. J Med Chem 1976, 19, 2, 276-279.
2 Castaner, J.; Hillier, K.; Centchroman. Drugs Fut 1977, 2, 7, 441.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(A) 20225 iodo(methyl)magnesium 917-64-6 CH3IMg 详情 详情
(B) 33922 1-(2-Chloroethyl)pyrrolidine; N-(2-Chloroethyl)pyrrolidine C6H12ClN 详情 详情
(VI) 33924 4-[(3R,4R)-7-methoxy-2-oxo-3-phenyl-3,4-dihydro-2H-chromen-4-yl]phenyl acetate C24H20O5 详情 详情
(VII) 33926 4-[(3R,4R)-7-methoxy-2,2-dimethyl-3-phenyl-3,4-dihydro-2H-chromen-4-yl]phenol C24H24O3 详情 详情
(VIII) 33925 2-[(1R,2R)-3-hydroxy-1-(4-hydroxyphenyl)-3-methyl-2-phenylbutyl]-5-methoxyphenol C24H26O4 详情 详情
Extended Information