根据文献所提供的条件进行了实验，所得收率仅31-33％，分析原因为醚键断裂比较困难。

In accordance with the conditions provided by literature, the yield of the experiment done by us was only 31-33%. It's probably because of the difficulty of cleavage of ether bond.

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最后，甲基化试剂再进攻集合物中的硫醚，从而导致碳硫键的断裂。

Finally, methylating agent attacks sulfide in assemblage to cleavage carbon - sulfur bond.

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最后，甲基化试剂再进攻集合物中的硫醚，从而导致碳硫键的断裂。

Finally, methylating agent attacks sulfide in assemblage to cleavage carbon - sulfur bond.

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