Visible light-promoted synthesis of 4,6a-dihydropyrrolo[3,4-c]pyrrole-1,3(2H,3aH)-diones via [3+2] cycloaddition reaction of 2H-azirines with maleimides
Novel substituted 2-mercaptoimidazoles of the formula ##STR1## in which at least one of the radicals R.sub.1 and R.sub.2 is a substituted or unsubstituted heteroaryl group and the other is a substituted or unsubstituted aryl group, R.sub.3 is hydrogen or lower alkyl, n is 0, 1 or 2 and R.sub.4 is a substituted or unsubstituted aliphatic hydrocarbon radical and their pharmaceutically usable salts exhibit anti-inflammatory, anti-nociceptive and/or antithrombotic activity.
2-(Sulphinyl and sulfonyl)-4(5)-phenyl-5(4)-(3'-pyridyl)-imidazols
申请人:Ciba-Geigy Corporation
公开号:US04608382A1
公开(公告)日:1986-08-26
Novel substituted 2-mercaptoimidazoles of the formula ##STR1## in which at least one of the radicals R.sub.1 and R.sub.2 is a substituted or unsubstituted heteroaryl group and the other is a substituted or unsubstituted aryl group, R.sub.3 is hydrogen or lower alkyl, n is 0, 1 or 2 and R.sub.4 is a substituted or unsubstituted aliphatic hydrocarbon radical and their pharmaceutically usable salts exhibit anti-inflammatory, anti-nociceptive and/or antithrombotic activity.
Pharmaceutical use of [[[(3-pyridinyl)methylen]amino]oxy]alkanoic acids
申请人:Janssen Pharmaceutica N.V.
公开号:US04746671A1
公开(公告)日:1988-05-24
Novel [[[(3-pyridinyl)methylen]amino]oxy]alkanoic acids and esters, compositions containing the same, and methods of treating clinical conditions related with the production of thromboxane A.sub.2, prostacyclin and/or prostaglandins D.sub.2, E.sub.2 and F.sub.2.alpha..
Visible light-promoted synthesis of 4,6<i>a</i>-dihydropyrrolo[3,4-<i>c</i>]pyrrole-1,3(2<i>H</i>,3<i>aH</i>)-diones <i>via</i> [3+2] cycloaddition reaction of 2<i>H</i>-azirines with maleimides
作者:Hao Guo、Huahao Wang、Hongyi Zhao、Dongfeng Zhang
DOI:10.1039/d2nj06257g
日期:——
Diastereoselective synthesis of pyrrolo[3,4-c]pyrrole-1,3-dione derivitives from 2H-azirines and N-substituted maleimides through an efficient and environmentally friendly visible light-induced cycloaddition reaction.