申请人:Hoffmann-La Roche Inc.
公开号:US04650812A1
公开(公告)日:1987-03-17
The invention relates to compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or lower alkyl, R.sup.2 is hydrogen or halogen, R.sup.3 is hydrogen or lower alkyl, R.sup.4 is hydrogen or lower alkyl, R.sup.5 is hydrogen, lower alkyl or aralkyl, X is alkylene and n is an integer from 1 to 6, enantiomers thereof, and, when R.sup.5 is hydrogen, salts thereof with pharmaceutically acceptable bases.
本发明涉及公式##STR1##的化合物,其中R.sup.1是氢或低碳基,R.sup.2是氢或卤素,R.sup.3是氢或低碳基,R.sup.4是氢或低碳基,R.sup.5是氢,低碳基或芳基烷基,X是烷基,n是1到6的整数,其对映体,以及当R.sup.5是氢时,与药学上可接受的碱盐。