3-(1 H-咪唑-1-基)-4 H -1-苯并吡喃-4-酮2和2-(1 H-咪唑-1-基)-4 H -1-苯并吡喃-an的合成-4-一11被描述。前者通过2-(1 H-咪唑-1-基)-2'-羟基苯乙酮的苯并二氢吡喃环封闭而进行,后者发生的是使3-溴-4 H -1-苯并吡喃-4-酮与咪唑反应,这是一个例子。 2-杂芳基色酮的新合成方法。化合物2可以很容易地还原为先前在第1部分中描述的相应的苯并二氢吡喃酮和苯并二氢吡喃醇。
A series of 2-azolylchromone derivatives were synthesized and their monoamine oxidase (MAO) A and B inhibitory activities were evaluated. Of the synthesized compounds, compounds 1b, 2b, 4a–c, 5b and 7b showed potent inhibitory activities against MAO-A (IC50 values, 1b: 0.32 µM; 2b: 0.14 µM; 4a: 0.11 µM; 4b: 0.023 µM; 4c: 0.15 µM; 5b: 0.59 µM; 7b: 0.19 µM) and 4a, c, 5a, c, 6c and 8c for MAO-B (IC50 values, 4a: 0.028 µM; 4c: 0.019 µM; 5a: 0.73 µM; 5c: 0.28 µM; 6c: 0.28 µM; 8c: 0.27 µM). These data suggest that 6-methoxy substitution favors MAO-A inhibition and 7-methoxy substitution favors MAO-B inhibition. In addition, compound 4b was the most potent inhibitor for MAO-A, and compound 4c for MAO-B. This is the first report identifying 2-azolylchromone derivatives as potent monoamine oxidase inhibitors. These results suggest that the 2-triazolylchromone structure may be a useful scaffold for the design and development of novel monoamine oxidase inhibitors, as evidenced by the activities of 4a–c and 5a–c.
Oxidative regioselective amination of chromones exposes potent inhibitors of the hedgehog signaling pathway
作者:Rajarshi Samanta、Rishikesh Narayan、Jonathan O. Bauer、Carsten Strohmann、Sonja Sievers、Andrey P. Antonchick
DOI:10.1039/c4cc08376h
日期:——
A novel selective coupling of chromones with azoles for the synthesis of biologically active compounds was developed.
一种新型的选择性偶联方法,用于合成具有生物活性的化合物,将环酮与唑类化合物结合。
Reaction of 3-Iodochromone with Nucleophile 1. Reaction of 3-Iodochromone with Azoles
作者:Ichiro Yokoe、Yoshiaki Sugita
DOI:10.3987/com-96-7615
日期:——
GOZZI, P.;PILLAN, A., J. HETEROCYCL. CHEM., 1985, 22, N 2, 441-443
作者:GOZZI, P.、PILLAN, A.
DOI:——
日期:——
Imidazolyl derivatives of the chroman ring. 2
作者:Paolo Cozzi、Antonio Pillan
DOI:10.1002/jhet.5570220245
日期:1985.3
The synthesis of 3-(1H-imidazol-1-yl)-4H-1-benzopyran-4-ones 2 and of 2-(1H-imidazol-1-yl)-4H-1-benzopyr-an-4-ones 11 are described. The former proceeds through chromanring closure from 2-(1H-imidazol-1-yl)-2′-hydroxyacetophenones, the latter occurs reacting 3-bromo-4H-1-benzopyran-4-ones with imidazole and represents an example of a new synthesis of 2-heteroarylchromones. Compounds 2 can be easily
3-(1 H-咪唑-1-基)-4 H -1-苯并吡喃-4-酮2和2-(1 H-咪唑-1-基)-4 H -1-苯并吡喃-an的合成-4-一11被描述。前者通过2-(1 H-咪唑-1-基)-2'-羟基苯乙酮的苯并二氢吡喃环封闭而进行,后者发生的是使3-溴-4 H -1-苯并吡喃-4-酮与咪唑反应,这是一个例子。 2-杂芳基色酮的新合成方法。化合物2可以很容易地还原为先前在第1部分中描述的相应的苯并二氢吡喃酮和苯并二氢吡喃醇。