N-<4-ethyl-(2-methyl-6,7-methylenedioxy-4-quinazolinylmethyl)-phenyl>carbamate

(6-methyl-[1,3]dioxolo[4,5-g]quinazolin-8-ylmethyl)-carbamic acid ethyl ester

6-methyl-1,3-oxazine-2,4-dione

碳酸二乙酯

N-甲基吗啡啉