tert-Butyl 3-(4-((5-fluoropyridin-2-yl)methoxy)-6-oxopyridazin-1(6H)-yl)-5-methyl-6,7,8,9,10,11-hexahydro-7,11-imino-5H-cyclooct[b]indole-12-carboxylate 以45%的产率得到5-((5-Fluoropyridin-2-yl)methoxy)-2-(5-methyl-6,7,8,9,10,11-hexahydro-7,11-imino-5H-cyclooct[b]indol-3-yl)pyridazin-3(2H)-one hydrochloride