Oblon, Spivak, McClelland, maier & Neustadt
Pyrrolidine derivatives
 This invention relates to pyrrolidine derivatives and pharmaceutically acceptable salts thereof of the structure ##STR1## where R.sup.1, R.sup.2, and R.sup.3 are as defined herein. These compounds are for pharmaceutical use in treating thrombotic diseases, asthma or nephritis. 
Fujisawa Pharmaceutical Co., Ltd.
C C C C C C C C C C
C07D C07D C07D C07D C07D C07D C07D C07D C07D C07D
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Masashi Akihiko Hirokazu Hiroyuki
Hashimoto Sawada Tanaka Setoi