Process for making 2-oxo-1-((substituted sulfonyl)amino)carbonzy

Details Process for making 2-oxo-1-((substituted sulfonyl)amino)carbonzy Process for making 2-oxo-1-((substituted sulfonyl)amino)carbonzy

1987-12-21

1989-12-26

Berch, Mark L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

540364, C07D70508, C07D40112, C07D41714, C07B 5100

Patent

active

048899305

ABSTRACT:
An improved process for making compounds having the formula ##STR1## includes subjecting an intermediate of the formula ##STR2## to hydrogenolysis in the presence of a ketonic solvent so as to simultaneously remove both Z-protecting groups from compound II while selectively reprotecting the --A.sub.1 --NH.sub.2 end of that molecule.

REFERENCES:
patent: 4743685 (1988-05-01), Brewer

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