Patent 7589194 was granted and assigned to Abbott on September, 2009 by the United States Patent and Trademark Office.
A 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′-k1]pyrrolo[3,4-i][1,6]benzodiazocin-1-one methanolate pentahydrate and ways to make it are disclosed.