Z= O—CS–OPh 85 [53] Ac Z= O—CS–SMe 85 [54] Z = O–CS–SMe 75 [55] Z= O—CS–SMe 90 [55] Z= O—CS–SMe 70 [56] (overall from alcohol) X Z = O—CS–SMe Xylene 90 [37] ...
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