1-deoxy-3,4:5,6-di-O-isopropylidene-β-D-arabino-2,3-heptopyranodiulose 、
苯甲醛 在
正丁基锂 、
二异丙胺 作用下,
生成
(R)-3-Hydroxy-3-phenyl-1-((3aR,5aR,8aR,8bS)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-yl)-propan-1-one 、 (R)-3-Hydroxy-3-phenyl-1-((3aR,5aR,8aR,8bS)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-yl)-propan-1-one