Benzazolin-2-thiones in the michael reaction. 1. Reaction of benzothiazolin- and benzoxazolin-2-thiones with acrylonitrile, acrylamide, and methylacrylate in the presence of acid catalysts
3-[1-(2-Benzoxazolyl)hydrazino]propanenitrile derivatives: inhibitors of immune complex induced inflammation
作者:Fortuna Haviv、James D. Ratajczyk、Robert W. DeNet、Francis A. Kerdesky、Roland L. Walters、Steven P. Schmidt、James H. Holms、Patrick R. Young、George W. Carter
DOI:10.1021/jm00117a010
日期:1988.9
3-[1-(2-Benzoxazolyl)hydrazino]propanenitrile derivatives were evaluated in the dermal and pleural reverse passive Arthus reactions in the rat. In the pleural test these compounds were effective in reducing exudate volume and accumulation of white blood cells. This pattern of activity was similar to that of hydrocortisone and different from that of indomethacin. The structural requirements for inhibiting the Arthus reactions were studied by systematic chemical modification of 1. These structure-activity relationship studies revealed that nitrogen 1' of the hydrazino group is essential for activity and must be electron rich, whereas chemical modifications of other sites of 1 had only a modest effect on activity.
An easy and fast ultrasonic selective S-alkylation of hetaryl thiols at room temperature
作者:Todor Deligeorgiev、Stefka Kaloyanova、Nedyalko Lesev、Juan J. Vaquero
DOI:10.1016/j.ultsonch.2010.03.002
日期:2010.6
A series of 2-alkylthio derivatives of hetaryl thiols were synthesized by selective S-alkylation with alkyl halides (bromides and iodides) with ultrasonic irradiation at room temperature. The reaction was found to be generally applicable to hetaryl thiol derivatives with different substituents in the aromatic nucleus and various alkyl halides. The reaction gives high to excellent yields of products with high purity. (C) 2010 Elsevier B.V. All rights reserved.
HAVIV, FORTUNA;RATAJCZYK, JAMES D.;DENET, ROBERT W.;KERDESKY, FRANCIS A.;+, J. MED. CHEM., 31,(1988) N 9, C. 1719-1728
作者:HAVIV, FORTUNA、RATAJCZYK, JAMES D.、DENET, ROBERT W.、KERDESKY, FRANCIS A.、+
DOI:——
日期:——
D'Amico, John J.; Suba, Lydia; Ruminski, Peter G., Journal of Heterocyclic Chemistry, 1986, vol. 23, p. 1629 - 1635
作者:D'Amico, John J.、Suba, Lydia、Ruminski, Peter G.
DOI:——
日期:——
Benzazolin-2-thiones in the michael reaction. 1. Reaction of benzothiazolin- and benzoxazolin-2-thiones with acrylonitrile, acrylamide, and methylacrylate in the presence of acid catalysts