(2019/05/07)
5,10-bis(benzyloxy)-3-(4-fluorobenzyl)-9,9,12-trimethyl-9,10,11,12-tetrahydro-3H-pyridazino[4',5':3,4]pyrido[1,2-a][1,4]diazocine-4,6,13(8H)-trione
ethyl 4,9-bis(benzyloxy)-11-formyl-2,5,5-trimethyl-1,8-dioxo-1,3,4,5,6,8-hexahydro-2H-pyrido[1,2-a][1,4]diazocine-10-carboxylate
ethyl 4,9-bis(benzyloxy)-2,5,5-trimethyl-1,8-dioxo-11-vinyl-1,3,4,5,6,8-hexahydro-2H-pyrido[1,2-a][1,4]diazocine-10-carboxylate
ethyl 4,9-bis(benzyloxy)-11-bromo-2,5,5-trimethyl-1,8-dioxo-1,3,4,5,6,8-hexahydro-2H-pyrido[1,2-a][1,4]diazocine-10-carboxylate
3-(4-fluorobenzyl)-5,10-dihydroxy-9,9,12-trimethyl-9,10,11,12-tetrahydro-3H-pyridazino[4',5':3,4]pyrido[1,2-a][1,4]diazocine-4,6,13(8H)-trione