5'S-(2R-BUTYL)-ERGOT PEPTIDE ALKALOIDS AND THEIR SALTS,THEIR PRODUCTION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

An ergot 5'S-(2R-butyl) peptide alkaloid and its acid addition salts is a useful pharmaceutical for use as a prolactin secretion inhibitor, for increasing vigilance or for the treatment of senile dementia, hypertension, or stroke.