(1alpha,2alpha,6alpha,7alpha,7aalpha)-Hexahydro-1H-pyrrolizine-1,2,6,7-tetrol 1,2,6,7-Tetrahydroxypyrrolizidine 1,2,6,7-Thpz 129415-27-6 1H-pyrrolizine-1,2,6,7-tetrol, hexahydro-, (1alpha,2alpha,6alpha,7alpha,7aalpha)-