Benzyl 2-allyl-3-oxo-1-piperidinecarboxylate

benzyl (2S,3S)-2-allyl-3-hydroxypiperidine-1-carboxylate

benzyl (3aS,7aS)-2-(bromomethyl)hexahydrofuro[3,2-b]pyridine-4(2H)-carboxylate

(3As,7as)-苄基2-(溴甲基)-2-甲氧基六氢呋喃并[3,2-b]吡啶-4(2H)-羧酸

benzyl (3aS,7aS)-2-hydroxy-2-[(4-oxo-3(4H)-quinazolinyl)methyl]hexahydrofuro[3,2-b]pyridine-4(2H)-carboxylate