| 摘要 |
ALLGN.02A PATENT The present invention relates to new carbonyl 3R,4Rethyl-¢(1-methyl-1H-imidazol-5-yl)methyl!-2-pyrrolidinone derivatives carrying a carboxyester-type lipophilic moiety on the pyrrolidinone nitrogen. More particularly, the present invention concerns new N-substituted carbonyl3R,4R-ethyl-¢(1-methyl-1H-imidazol-5-yl)methyl!-2-pyrrolidinone derivatives of the formula (I): wherein R is an optionally substituted hydrocarbon group, and pharmaceutically acceptable acid addition salts thereof. The new compounds of the formula (I) are potent ocular hypotensives that are valuable antiglaucoma agents. They are also targeted for use in the treatment of so-called dry eye.
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