Patents Represented by Attorney Melvyn M. Kessenoff

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  • Process for preparing phosphinyloxy propanaminium inner salt derivatives
    Patent number: 5412137
    Abstract: A process for preparing compounds of the formula ##STR1## where X.sub.1 and X.sub.2 are independently O or S, andR.sub.1 is as defined herein,R.sub.2, R.sub.3, and R.sub.4 are each independently straight or branched chain (C.sub.1-4)alkyl,and pharmaceutically acceptable salts, physiological hydrolyzable esters, and pro-drug forms thereof, which are useful as hypoglycemic agents.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: May 2, 1995
    Assignee: Sandoz Ltd.
    Inventors: Mahavir Prashad, Prasad K. Kapa