(4R,12As)-3,4,6,8,12,12A-六氢-7-甲氧基-4-甲基-6,8-二氧代-2H-吡啶并[1',2':4,5]吡嗪并[2,1-B][1,3]恶嗪-9-羧酸

(4R,12As)-7-Methoxy-4-Methyl-6,8-Dioxo-3,4,6,8,12,12A-Hexahydro-2H-[1,3]Oxazino[3,2-D]Pyrido[1,2-A]Pyrazine-9-Carboxylic Acid