3-(4-Bromphenyl)-6-(4-bromphenylimino)-4-(dimethylamino)tetrahydro-5,5-dimethyl-2H-1,3-thiazin-2-thion

亚异丁基丙二酸二乙酯

(E)-1-(dimethylamino)-4-methylpent-1-en-3-one