Method of preparing 3-morpholino-2-cyanoacrylamide
申请人:Burroughs Wellcome Co.
公开号:US04146713A1
公开(公告)日:1979-03-27
A compound ##STR1## where R' is hydrogen or lower alkyl, the compound being usable as an intermediate in the preparation of 4-hydroxypyrazolo [3,4-d]pyrimidine (Allopurinol) and its useful relatives. A method of preparing ##STR2## which comprises reacting R'C(OR).sub.3, morpholine and cyanoacetamide where R' is hydrogen or lower alkyl and R' is lower alkyl.
Processes for preparing tri-heterocyclic substituted methanes and their conversion into further intermediates useful in the preparation of pharmacologically active compounds
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:EP0001633A1
公开(公告)日:1979-05-02
The present invention provides a process for preparing useful chemical intermediates, tri-heterocyclic substituted methanes, and their conversion into further intermediates useful in the preparation of pharmacologically active compounds, such as trimethoprim and allopurinol.