Patent ID: 7589194

Claim:
Crystalline (9S-(9α,10β,12α))-2,3,9,10,11,12-hexahydro-10-hydroxy-10-(carboxylate)-9-methyl-9,12-epoxy-1H-diindolo[1,2,3-fg:3′,2′,1′-kl]pyrrolo[3,4-i][1,6]benzodiazocin-1-one methanolate pentahydrate characterized in the monoclinic crystal system and P2 1 space group, when measured at about −100° C. with Mo-Kα radiation, by lattice parameters a, b and c of 13.200 Å±0.003 Å, 6.938 Å±0.003 Å and 15.617 Å±0.007 Å, respectively, and β of 104.674°±0.007.