(3aR,4aR,7R,8aR,9S,9aR)-9-Methoxy-7-phenyl-hexahydro-[1,3]dioxolo[4',5':5,6]pyrano[3,2-d][1,3]dioxine-2-thione 在
溴甲烷 、 Proton Sponge 作用下,
反应 20.0h,
以58%的产率得到(3aR,4aR,7R,8aR,9S,9aR)-9-Methoxy-7-phenyl-hexahydro-1,4,6,8-tetraoxa-3-thia-cyclopenta[b]naphthalen-2-one