The present invention relates to a stereoselective reduction procedure to obtain, by means of catalytic asymmetric hydrogenation by hydrogen transfer, a compound of formula (I) in which X is S or SO2 and R4 is hydrogen or an SO2NH2 group, from the corresponding ketone precursor, said compound of formula (I) being useful as an intermediate in the preparation of dorzolamide or of the hydrochloride salt thereof.
本发明涉及一种立体选择性还原程序,通过氢转移的催化不对称加氢,得到一种化合物,其
化学式为(I),其中X为S或SO2,R4为氢或SO2NH2基团,从相应的酮前体中获得。所述化合物的
化学式(I)可作为多索胺或其盐的盐酸盐的制备中间体。