原甲酸三乙酯

丙二腈

(1SR,3SR)-spiro[(2,2-dicyano-3-ethoxy)cyclobutan-1,3'-(1'-acetyl)-2'-oxoindoline]

乙烯基乙醚

1-(2',3',4',5'-Tetra-O-acetyl-β-D-glucopyranosyl)urea