| 摘要 |
<p>The present invention relates to compounds of the formula <CHEM> wherein R is methyl, fluorine or bromine, and pharmaceutically acceptable salts thereof. Utilizable as therapeutically active agents especially for the treatment of retroviral infections, particularly HIV infections, they can be prepared in a manner known per se by a process which comprises reacting 2-bromo-2'-(1H-pyrrol-2-yl-carbonyl)acetanilide, correspondingly substituted by R in the 4'-position, with ammonia and cyclizing the obtained 2-aminoacetanilide with pivalic acid.</p> |
