55529-83-4

BUTANOIC ACID 2(OR 3)-(ACETYLOXY)-3(OR 2)-HYDROXY-2-(ISOPROPYL)-,(2,3,5,7A-TETRAHYDRO-1-HYDROXY-1H-PYRROLIZIN-7-YL)METHYL ESTER,(1R-(1A,7(2S*,3R*),7ABETA))-