Processes for the production of 13-ether derivatives of milbemyc

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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549265, C07D31500

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active

054611687

ABSTRACT:
An intermediate useful in the synthesis of milbemycin derivatives having an ether bond at the 13-position and which is represented by the general formula (IIId): ##STR1## wherein R represents a methyl group, an ethyl group, an isopropyl group or a sec-butyl group, and R.sup.5 and R.sup.6' each individually represents a hydrogen atom or a protecting group,

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