Antihypertensive activity of 6-arylpyrido[2,3-d]pyrimidin-7-amine derivatives was written by Bennett, Lawrence R.;Blankley, C. John;Fleming, Robert W.;Smith, Ronald D.;Tessman, Deirdre K.. And the article was included in Journal of Medicinal Chemistry in 1981.Category: nitriles-buliding-blocks This article mentions the following:
Fifty-one title compounds I (R = H, Me, Et, etc.; R1 = H, Me, OEt, etc.; R2 = substituted phenyl) were synthesized and evaluated for antihypertensive activity in the conscious spontaneously hypertensive rat. A number of these compounds, notably 6-(2,6-dichlorophenyl)-2-methylpyrido[2,3-d]pyrimidin-7-amine [76574-80-6], lowered blood pressure in these rats in a gradual and sustained manner to normotensive levels at oral doses of 10-50 mg/kg. Normalized blood pressure levels could then be maintained by single daily oral doses. The effect of structural variation in the 6-aryl group and in the 2 and 4 positions of the pyridopyrimidine ring on activity is reported and discussed. In the experiment, the researchers used many compounds, for example, 2-(2,3-Dichlorophenyl)acetonitrile (cas: 3218-45-9Category: nitriles-buliding-blocks).
2-(2,3-Dichlorophenyl)acetonitrile (cas: 3218-45-9) belongs to nitriles. Nitrile carbon shifts are in the range of 115â?25 ppm whereas in isonitriles the shifts are around 155â?65 ppm. Alkyl nitriles are sufficiently acidic to undergo deprotonation of the C-H bond adjacent to the CN group.Strong bases are required, such as lithium diisopropylamide and butyl lithium. The product is referred to as a nitrile anion. Category: nitriles-buliding-blocks
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts