N-Acyl-4,5-dihydro-4,4-dimethyl-N-methyl-2-thiazolamine as a chemoselective acylating agent
作者:Taek Hyeon Kim、Garp-Yeol Yang
DOI:10.1016/s0040-4039(02)02414-0
日期:2002.12
2-Methylamino-2-thiazoline reacted with alkyl acyl halides to produce N-acyl-2-methylamino-2-thiazolines, exo-acylated product regioselectively, which were found to be highly chemoselective acylatingagents for primary amine in the presence of secondary amine and for the less sterically hindered of two different primary amines.
Efficient synthesis of 2-methylaminothiazolines via Mitsunobu reaction of N-(2-hydroxyethyl)-N′-methyl-thioureas
作者:Taek Hyeon Kim、Mi-Hyun Cha
DOI:10.1016/s0040-4039(99)00457-8
日期:1999.4
2-Methylaminothiazolines 3 were synthesized selectively from N-(2-hydroxyethyl)-thioureas 2 by the intramolecular Mitsunobureaction.
通过分子内的Mitsunobu反应从N-(2-羟乙基)-硫脲2选择性地合成2-甲基氨基噻唑啉3。
Discovery, synthesis and SAR analysis of novel selective small molecule S1P4-R agonists based on a (2Z,5Z)-5-((pyrrol-3-yl)methylene)-3-alkyl-2-(alkylimino)thiazolidin-4-one chemotype
High affinity and selective S1P(4) receptor (S1P(4)-R) small molecule agonists may be important proof-of-principle tools used to clarify the receptor biological function and effects to assess the therapeutic potential of the S1P4-R in diverse disease areas including treatment of viral infections and thrombocytopenia. A high-throughput screening campaign of the Molecular Libraries-Small Molecule Repository was carried out by our laboratories and identified (2Z,5Z)-5-((1-(2-fluorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl)methylene)-3-methyl-2-(methylimino) thiazolidin-4-one as a promising S1P(4)-R agonist hit distinct from literature S1P(4)-R modulators. Rational chemical modifications of the hit allowed the identification of a promising lead molecule with low nanomolar S1P(4)-R agonist activity and exquisite selectivity over the other S1P(1-3,5)-Rs family members. The lead molecule herein disclosed constitutes a valuable pharmacological tool to explore the effects of the S1P(4)-R signaling cascade and elucidate the molecular basis of the receptor function. (C) 2011 Elsevier Ltd. All rights reserved.
Mizrakh, L. I.; Polonskaya, L. Yu.; Gvozdetskii, A. N., Journal of general chemistry of the USSR, 1988, vol. 58, # 10, p. 1999 - 2003
作者:Mizrakh, L. I.、Polonskaya, L. Yu.、Gvozdetskii, A. N.、Vasil'ev, A. M.、Karpunina, L. B.
DOI:——
日期:——
2-Amino-2-oxazoline Formation by Cyclization of 1-(2-Hydroxyethyl)-2-methyl-2-thiopseudoureas
作者:Daniel L. Klayman、Robert J. Shine、Arless E. Murray