Synthesis of 5-substituted 4-O-methyl te
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Raymond C.F Jones; Andrew D Bates
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Article
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1986
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Elsevier Science
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French
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4-Methoxy-A3 -pyrrolin-2-ones (4-O-methyl tetramates) are \_ alkylated at C-5 via a lithio-derivative; an N-substituent may be introduced either during or after heterocycle formation.