| http://www.w3.org/ns/prov#value | - Intermediates of formula (VI) can be prepared by reacting an intermediate of formula (XIX) wherein W3 is as defined hereinabove, with an intermediate of formula (III) in the presence of a suitable solvent, such as for example an alcohol, e.g. methanol, ethanol, isopropanol and the like, and a suitable acid, such as for example hydrochloric acid.
|
