庚二酸二乙酯

2-methyl-6,7,8,9-tetrahydro-[1,3,4]thiadiazolo[2,3-b]quinazolin-5-one

2-(三氟甲基 磺酰氧基)-1-环乙烯-1-羧酸乙酯

2-ethyl-6,7,8,9-tetrahydro-[1,3,4]thiadiazolo[2,3-b]quinazolin-5-one

2-phenyl-6,7,8,9-tetrahydro-[1,3,4]thiadiazolo[2,3-b]quinazolin-5-one