苯甲醛 、
(2R,6S)-6-methoxy-2-phenyl-4a,6,7,8a-tetrahydro-4H-pyrano[3,2-d][1,3]dioxin-8-one 生成 (2R,4aR,6S,7R,8aR)-7-((R)-Hydroxy-phenyl-methyl)-6-methoxy-2-phenyl-tetrahydro-pyrano[3,2-d][1,3]dioxin-8-one 、
(2R,4aR,6S,7R,8aR)-7-((R)-Hydroxy-phenyl-methyl)-6-methoxy-2-phenyl-tetrahydro-pyrano[3,2-d][1,3]dioxin-8-one