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Regioselective Synthesis of 2‐oxo‐2,8‐dihydro‐[l,2,4] oxadiazolo [2,3‐ a ]pyrimidine‐7‐carbamates: A New Class of Antihypertensive Peripheral Vasodilators
Author(s) -
Muller JeanClaude,
Ramuz Henri
Publication year - 1982
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19820650518
Subject(s) - chemistry , regioselectivity , pyrimidine , stereochemistry , medicinal chemistry , organic chemistry , catalysis
The synthesis of new 2‐oxo‐2,8‐dihydro‐[l,2,4]‐oxadiazoo‐[2,3‐ a ] pyrimidine‐carbamates 3 described in this paper is based upon a regioselective heterocyclization of the pyrimidine‐2,6‐bis (alkoxycarbonylamino) N ‐oxides 4. Structural and mechanistic aspects of that cyclizalion are discussed.
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