2-(6-bromo-2,3-dihydro-1,4-benzoxazin-4-yl)-6,6-dimethyl-5,7-dihydro-[1,3]thiazolo[5,4-c]pyridin-4-one

ethyl 3-methylhepta-2,6-dienoate

异戊酸乙酯

2,2-二甲基丁二酸

2,4-二甲基-1,3-戊二烯