4-(6-(Methylsulfonyloxy)benzo(b)thiophen-2-yl)phenyl methanesulfonate

It is typically subjected to Friedel-Crafts acylation followed by deprotection of the methane sulfonyl groups to produce Raloxifene. 4-(6-(Methylsulfonyloxy)benzo(b)thiophen-2-yl)phenyl methanesulfonate (CAS 84449-65-0) is a key protected intermediate in the synthesis of Raloxifene, serving as a bimesylate derivative that protects the hydroxyl groups on the benzothiophene core.

API Name Raloxifene
CAS No 84449-65-0
Molecular Formula C16H14O6S3
Molecular Weight 398.5 g/mol
Synonyms [4-(6-methylsulfonyloxy-1-benzothiophen-2-yl)phenyl] methanesulfonate

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