Patent ID: 9051346
Filing Date: 2015-06-09
Classification: A61P,C07H

Abstract:
1. A process comprising (a) the step of contacting a compound of formula (III) or a salt thereof, wherein Q in combination with the oxime oxygen forms an acetal or ketal, with an acylating agent to form a compound of formula (IV) or a salt thereof, wherein R is an acyl group; or (b) the step of contacting a compound of formula (IV), or a salt thereof, with a methylating agent, to form a compound of formula (V) or a salt thereof; or (c) the step of contacting a compound of formula (V), or a salt thereof, with a deoximating agent to form a compound of formula (II) or a salt thereof; or (d) any combination of (a), (b), and (c).