A NEW SYNTHESIS OF CIS-3-SUBSTITUTED CHROMAN-4-OLS
摘要:
3,3-Dibromochroman-4-ones on reaction with different heterocyclic secondary amines gave 3-substituted chromones. These on reduction with NaBH4 gave exclusively cis-3-heterocycle substituted chroman-4-ols in good yields.
A NEW SYNTHESIS OF CIS-3-SUBSTITUTED CHROMAN-4-OLS
摘要:
3,3-Dibromochroman-4-ones on reaction with different heterocyclic secondary amines gave 3-substituted chromones. These on reduction with NaBH4 gave exclusively cis-3-heterocycle substituted chroman-4-ols in good yields.
3-Piperidino-1-chromanol derivatives and analogs having the formula
wherein
A and B are taken together and are -CH₂CH₂- or A and B are taken separately and are each H;
X is CH₂ or O,
X¹ is H or OH;
Z is H, F, Cl, Br or OH;
Z¹ is H, F, Cl, Br or (C₁-C₃)alkyl;
n is 0 or 1; and
m is 0 or an integer from 1 to 6;
pharmaceutical compositions thereof; methods of treating CNS disorders therewith; and intermediates useful in the preparation of said compounds.
式中的 3-哌啶基-1-色醇衍生物及类似物
其中
A 和 B 合起来是-CH₂CH₂-,或 A 和 B 分开来各自是 H;
X 是 CH₂ 或 O、
X¹ 是 H 或 OH;
Z 是 H、F、Cl、Br 或 OH;
Z¹ 是 H、F、Cl、Br 或 (C₁-C₃)烷基;
n 是 0 或 1;以及
m 是 0 或 1 至 6 的整数;
其药物组合物;用其治疗中枢神经系统疾病的方法;以及用于制备上述化合物的中间体。
US5356905A
申请人:——
公开号:US5356905A
公开(公告)日:1994-10-18
US5436255A
申请人:——
公开号:US5436255A
公开(公告)日:1995-07-25
A NEW SYNTHESIS OF <i>CIS-</i>3-SUBSTITUTED CHROMAN-4-OLS
作者:M. Venkati、G. L. David Krupadanam
DOI:10.1081/scc-120005433
日期:2002.1.1
3,3-Dibromochroman-4-ones on reaction with different heterocyclic secondary amines gave 3-substituted chromones. These on reduction with NaBH4 gave exclusively cis-3-heterocycle substituted chroman-4-ols in good yields.