[1-(benzyloxy)-4,4-dimethyl-1,3-dioxopentan-2-yl]diazen-2-ium-1-ide

benzyl 2-hydroxy-4,4-dimethyl-3-oxopentanoate

N,N'-羰基二咪唑

特戊酰基乙酸乙酯

三甲基乙酰氯