1 H8J (8alpha)-N-[(2s)-1-hydroxybutan-2-yl]-1,6-dimethyl-9,10-didehydroergoline-8-carboxamide 1.000 2 H8D (8beta)-N-[(2s)-1-hydroxybutan-2-yl]-6-methyl-9,10-didehydroergoline-8-carboxamide 0.962 3 7LD (8alpha)-N,N-diethyl-6-methyl-9,10-didehydroergoline-8-carboxamide 0.786