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Penicillin sulfoxide reduction

Section 5.10.3.2). Treatment of methyl 6-phthalimido penicillinate (jR)-sulfoxide (40) with JV-chlorosuccinimide in refluxing carbon tetrachloride gives an epimeric mixture of sulfinyl chlorides (41) which are ring closed to epimeric 3-methylenecepham sulfoxides (42a) using tin(IV) chloride. Reduction with phosphorus tribromide gives the desired methyl 7-phthalimido-3-methylenecepham 4-carboxylate (42b). [Pg.294]

See other pages where Penicillin sulfoxide reduction is mentioned: [Pg.31]    [Pg.289]    [Pg.738]    [Pg.289]    [Pg.289]    [Pg.738]    [Pg.211]    [Pg.738]    [Pg.289]    [Pg.319]    [Pg.31]    [Pg.738]    [Pg.4]    [Pg.6]    [Pg.11]    [Pg.95]    [Pg.131]    [Pg.32]    [Pg.293]    [Pg.738]    [Pg.293]    [Pg.293]    [Pg.738]    [Pg.193]    [Pg.217]    [Pg.210]    [Pg.738]    [Pg.293]    [Pg.32]    [Pg.738]    [Pg.479]    [Pg.152]    [Pg.171]   
See also in sourсe #XX -- [ Pg.6 ]



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