4-Aryl and heteroaryl-1(2H)-isoquinolones have been prepared by base promoted cyclization of phosphorylated o-aroyl and heteroaroyl benzamides. Subsequent reduction of the carbonyl and styryl functions of the annulated products has given rise to 4-aryl-1,2,3,4-tetrahydroisoquinolines.
Selective non-nucleoside HIV-1 reverse transcriptase inhibitors. New 2,3-dihydrothiazolo[2,3-a]isoindol-5(9bH)-ones and related compounds with anti-HIV-1 activity
A series of substituted 2,3-dihydrothiazolo[2,3-a]isoindol-5(9bH)-ones and related compounds 1-73 were synthesized and evaluated for their ability to inhibit reverse transcriptase (RT) of the human immune deficiency virus 1 (HIV-1) and replication of HIV-1 in MT2 cells. The antiviral activity of these compounds depends on the stereoselective configuration of the substituent in position 9b. Structure-activity
A 3,6-disubstituted pyridazine derivative having excellent platelet agglutination inhibitory effects. It is useful for a preventive medicine or a therapeutic medicine for a cerebrovascular disorder such as cerebral thrombosis and cerebral embolism, an ischemic heart disease such as myocardial infarction, and a circulation disorder such as peripheral circulation disorder. A pharmaceutical composition containing a compound of the present invention as an effective ingredient and a process for preparing the same are also disclosed. The compound has the formula (I) ##STR1## wherein A represents an alkyl group having 3 to 6 carbon atoms; a cycloalkyl group having 5 to 7 carbon atoms; a phenyl group, a thienyl group, a furyl group, a thiazolyl group, a phenoxy group, a phenylalkyl group having 7 to 9 carbon atoms, a phenylthio group, a 5-6 membered saturated heterocyclic group containing one or more nitrogen atoms, a pyridyl group or an imidazolyl group each of which may have at least one substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms and a halogen atom; B represents (a) --NH--D wherein D represents ##STR2## (4) --CH.sup.3 R.sup.4 ; or (5) an alkyl group having 3 to 8 carbon atoms; or ##STR3## and the ring C represents a benzene ring.
Enantioselective Synthesis of Isoindolinone by Palladium-Catalyzed Aminoalkynylation of <i>O</i>-Phenyl Hydroxamic Ethers with Alkynes
作者:Lei Wang、Yinqiang Wang、Shuaijie Wu、Chao-Guo Yan、Chaoshen Zhang、Junliang Zhang、Ying Han
DOI:10.1021/jacs.3c12996
日期:2024.2.21
A highly efficient palladium-catalyzed asymmetric tandem aza-Heck/Sonogashira coupling reaction of O-phenyl hydroxamic ethers with terminal alkynes is described. This protocol enables versatile access to challenging chiral isoindolinone derivatives bearing a quaternarystereogeniccenter. The palladium-catalyzed aminoalkynylation reaction shows broad functional group tolerance and allows the straightforward