60548-02-9Relevant academic research and scientific papers
Quinoline and quinazoline compounds useful in therapy
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, (2008/06/13)
Compounds of formula I, wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 represents an aryl group or a heteroaryl group, optionally substituted by C1-4 alkyl or SO2
Quinolines and quinazolines useful in therapy
-
, (2008/06/13)
Compounds of formula I, wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 and R3 independently represent H or C1-6 alkoxy (which is optionally substituted); R4 represents a 4-, 5-, 6- or 7-membered heterocyclic rin
Synthesis and identification of the major metabolites of prazosin formed in dog and rat
Althuis,Hess
, p. 146 - 149 (2007/10/05)
The 6 O demethyl and 7 O demethyl analogues of the new antihypertensive drug prazosin [2 [4 (2 furoyl) piperazin 1 yl] 4 amino 6,7 dimethoxyquinazoline hydrochloride] have been unequivocally synthesized via separate ten step reaction sequences starting from isovanillin and vanillin, respectively. The 6 O demethyl derivative was found to be identical with the major prazosin metabolite formed in dog and rat, while the 7 O demethyl derivative was identical with another, less prevalent but significant metabolite. Two minor metabolites of prazosin, 2 (1 piperazinyl) 4 amino 6,7 dimethoxyquinazoline and 2,4 diamino 6,7 dimethoxyquinazoline, are also described. All four metabolites are less potent blood pressure lowering agents in dogs than prazosin but may contribute to its antihypertensive effect, since they account for a major portion of the administered dose.
