(6aS,9R)-N-[(1S,2S,4R,7R)-2-hydroxy-7-(2-methylpropyl)-5,8-dioxo-4-propan-2-yl-3-oxa-6,9-diazatricyclo[7.3.0.02,6]dodecan-4-yl]-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-carboxamide 、
甲烷磺酸 、
乙醚 以
乙醇 为溶剂,
以97.6% of the theory) with a melting point of 174°-175° C. was obtained的产率得到Ergocryptinine methanesulfonate