Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1974-09-20
1979-03-27
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C07D 4902, C07D29500
Patent
active
041467132
ABSTRACT:
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.
REFERENCES:
patent: 3141018 (1964-07-01), Straley
patent: 3310555 (1967-03-01), Pesson
patent: 4051242 (1977-09-01), Klemm et al.
Cresswell Ronald M.
Mentha John W.
Seaman Russell
Brown Donald
Burroughs Wellcome Co.
Killos Paul J.
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