Processes for the production of chinazoline alkaloids

摘要

Processes for the production of a compound of the following formula (I) by converting a compound of formula (II) with 2-pyrrolidone used in excess relative to compound (II) and processes for the production of a compound of formula (III). The latter process includes preparing compound (I); a reduction reaction which yields compound (III) in salt form; and liberating compound (III) from the salt.