抄録
Pyracrimycin A, a new antibiotic isolated from cultures of Streptomyces eridani n. sp. (ATCC 21619), was shown to be trans 3-(l-pyrrolin-2-yl)acrylamide (I). The structure determination was based on chemico-physical properties of I and of its dihydroderivative II. Structure I was confirmed by synthesis of the tetrahydro derivative III.