2<i>H</i>-Azirines as C–C Annulation Reagents in Cu-Catalyzed Synthesis of Furo[3,2-<i>c</i>]quinolone Derivatives
作者:Pavel A. Sakharov、Nikolai V. Rostovskii、Alexander F. Khlebnikov、Taras L. Panikorovskii、Mikhail S. Novikov
DOI:10.1021/acs.orglett.9b01043
日期:2019.5.17
A method of furo-annulation of 4-hydroxy-2-oxoquinoline-3-carboxylates with 3-arylazirines under Cu(II) catalysis was developed to synthesize a variety of 2,3-dihydrofuro[3,2-c]quinolones bearing a carbamate group at the C2 position. The reaction involves an azirine ring opening across the N–C2 bond and formation of a dihydrofuran ring with the inclusion of two azirine carbon atoms, accompanied by
开发了一种在Cu(II)催化下用3-芳基叠氮碱对4-羟基-2-氧代喹啉-3-羧酸酯进行呋喃环化反应的方法,合成了各种带有2-α-二氢呋喃[3,2- c ]喹诺酮的化合物。氨基甲酸酯基团位于C2位置。该反应涉及一个跨越N-C2键的叠氮基环,并形成二氢呋喃环,其中包含两个叠氮基碳原子,同时伴随着酯基向氮原子的转移。发现的反应是使用2 H-叠氮基进行呋喃环化反应的第一个例子。
Identification and characterization of amino-piperidinequinolones and quinazolinones as MCHr1 antagonists
作者:Christopher Blackburn、Matthew J. LaMarche、James Brown、Jennifer Lee Che、Courtney A. Cullis、Sujen Lai、Martin Maguire、Thomas Marsilje、Bradley Geddes、Elizabeth Govek、Vivek Kadambi、Colleen Doherty、Brian Dayton、Sevan Brodjian、Kennan C. Marsh、Christine A. Collins、Philip R. Kym
DOI:10.1016/j.bmcl.2006.02.044
日期:2006.5
Several potent, functionally active MCHr1antagonists derived from quinolin-2(1H)-ones and quinazoline-2(1H)-ones have been synthesized and evaluated. Pyridylmethyl substitution at the quinolone 1-position results in derivatives with low-nM binding potency and good selectivity with respect to hERG binding.