Hyponyme MeSH : (8.alpha.)-5'.alpha.-benzyl-12'-hydroxy-2'-isopropylergotaman-3',6',18-trione; phosphate de 5'.alpha.-benzyl-12'-hydroxy-2'-isopropylergotaman-3',6',18-trione; methanesulfonate de 5'.alpha.-benzyl-12'-hydroxy-2'-isopropylergotaman-3',6',18-trione;