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MERCAPTIOACETYLAMINO-SUBSTITUTED PYRIDO-, OXAZINO-, THIAZINO-, PYPERAZINO- AND PYRIDOBENZAZEPINONE DERIVATIVES OF ENCEPHALINASE INHIBITOR ACTIVITY AND PROCESS FOR PREPARING THEM
MERCAPTIOACETYLAMINO-SUBSTITUTED PYRIDO-, OXAZINO-, THIAZINO-, PYPERAZINO- AND PYRIDOBENZAZEPINONE DERIVATIVES OF ENCEPHALINASE INHIBITOR ACTIVITY AND PROCESS FOR PREPARING THEM