36214-25-2Relevant academic research and scientific papers
Transformations of 1,2,4-triazines in reactions with nucleophiles: V. SNH and ipso-substitution in the synthesis and transformations of 5-cyano-1,2,4-triazines
Kozhevnikov,Kozhevnikov,Kovalev,Rusinov,Chupakhin,Aleksandrov
, p. 744 - 750 (2007/10/03)
The scope of functionalization of 1,2,4-triazines can be considerably extended via successive nucleophilic substitution of hydrogen (S NH) and ipso-substitution. A convenient procedure has been developed for direct cyanation of 1,2,4-triazine 4-oxides with acetone cyanohydrin in the presence of triethylamine. The cyano group in the resulting 5-cyano-1,2,4-triazines is readily replaced by reactions with various aliphatic alcohols and amines.
Angiotensin II receptor antagonistic 1,2,4-triazin-5-one derivatives
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, (2008/06/13)
Disclosed are novel 1,2,4-triazin-5-one biphenyl derivatives having structural formula (I) useful as non-peptide antagonists of angiotensin II receptor: where R1 represents alkyl, cycloalkyl, or substituted or unsubstituted aryl; R2 represents alkyl, substituted or unsubstituted aryl, or arylalkyl; A and D independently represent C-R3, N, NH or C=O, wherein when A and D independently denote C-R3 or N, b and c are independently a double bond, and when A and D independently denote NH or C=O, b and c are independently a single bond; provided that b and c are not both double bonds; and R3 is hydrogen, dialkylphosphonate or halogen; and pharmaceutically acceptable salts thereof. Also disclosed is the use of the compounds of formula (I) as non-peptide antagonists of angiotensin II receptor, in the treatment of cardiovascular diseases, in particular hypertension and congestive heart failure.
STUDIES ON as-TRIAZINE DERIVATIVES. IV. SYNTHESIS OF UNSYMMETRICAL 5,6-DISUBSTITUTED 1,2,4-TRIAZINES
Konno, Shoetsu,Sagi, Mataichi,Agata, Mitsuko,Aizawa, Yuichi,Yamanaka, Hiroshi
, p. 2241 - 2244 (2007/10/02)
The reaction of 5-chloro-6-methyl-3-phenyl-1,2,4-triazine (4a) with ethylidenetriphenylphosphorane followed by the hydrolysis of the resulting as-triazinylphosphorane afforded 5-ethyl-6-methyl-3-phenyl-1,2,4-triazine (6a) in 88 percent yield.The condensat
Nouvelles voies d'acces aux diaryl-3,6 hydroxy-5 triazines-1,2,4 a partir des nitriles α-thioethers
Pochat, Francis
, p. 3595 - 3596 (2007/10/02)
Ar-C(CN)=N-N=C(CN)-Ar and Ar-C(CN)=N-NH-CO-Ar', easily prepared from the bromoderivates Ar-CBr(SEt)-CN, afford in good yields, by heating in a basic medium, 3,6-diaryl-5 hydroxy-1,2,4-triazines.
