HRID901350

反应详情

EQUATION

反应方程式

HRID 901350 的结构方程式

PROCEDURE

实验过程

In a process analogous to Step 6 METHOD A, using alternative Ru(II)-chiral diphosphine complexes in place of RuCl2(DMF)n[(R)—Cl—MeO-BIPHEP)] as the hydrogenation catalyst, one can obtain the identical products with varying enantiomeric excess at C-5. For example, in the reduction of 7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, ethyl ester to (5R)-7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dihydroxy-heptanoic acid, methyl ester proceeded as follows:

WORKUP

后处理

  1. customcan obtain the identical products