551-58-6 AI3-51772 Butanoic acid, 2,3-dihydroxy-2-(1-methylethyl)-, ((7aS)-2,3,5,7a-tetrahydro-1H-pyrrolizin-7-yl)methyl ester, (2S,3R)- Butanoic acid, 2,3-dihydroxy-2-(1-methylethyl)-, (2,3,5,7a-tetrahydro-1H-pyrrolizin-7-yl)methyl ester, (7aS-(7(2R*,3S*),7aR*))- Supinin Supinine