Diaminopyrimidine derivatives as growth hormone secrectgogue receptor (GHS-R) antagonists
申请人:Kosogof Christi
公开号:US20050171131A1
公开(公告)日:2005-08-04
The present invention is related to compounds of formula (I),
or a therapeutically suitable salt or prodrug thereof, the preparation of the compounds, compositions containing the compounds and the use of the compounds in the prevention or treatment of disorders regulated by the action of ghrelin receptor, including Prader-Willi syndrome, eating disorder, weight gain, weight-loss maintainance following diet and exercise, obesity, and disorders associated with obesity such as noninsulin dependent diabetes mellitus.
μ-oxo compound [(ZrCp2Me)2(μ-O)] is treated with two equivalents of pentaflurophenol, leading to the isolation of the alkoxo complex [ZrCp2(OC6F5)}2(μ-O)]10. The methylalkoxo derivative [ZrCp2Me(OC6F5)]11, was obtained by rection of [ZrCp2ClMe] with one equivalent of3. Alternative methods can be also be followed to synthesize8 and11. The crystal and molecularstructure of8 has been determined by X-ray
通过醇与正丁基锂或钠金属在己烷中的反应制得锂或钠的醇盐MOR(R CH 2 CHCMe 2; M Li 1; Na 2; RC 6 F 5; M Li 3。的3与SiClMe,得到森达3(OC 6 ˚F 5)4,而3个当量C的反应6 ˚F 5 OH与阿尔梅3中导致的Al(OC己烷6 ˚F 5)3 5。化合物1或2与一当量的[TiCp * Cl 2 Me](Cp * C 5 Me 5)在甲苯中反应,得到[TiCp * ClMe(OCH 2 CHCMe 2)] 6。配合物6与AlEtCl 2反应,定量得到[TiCp * Cl 3 ]。在水的存在下,发生6的水解反应,生成μ-氧代化合物[(TiCp * Cl)(μ-O)} 3 ]。[TiCp * Cl 2 Me]与过量的醇C反应6 F 5 OH得到[TiCp *(OC 6 F 5)3 ] 7。[ZrCp 2 Cl 2 ]在苯胺的存在下与两当量的五氟苯酚反应生成二烷氧化物[ZrCp
An improved synthesis of 3-(1,1-dimethylallyl)coumarins
作者:Rosario Hernández-Galán、Javier Salvá、Guillermo M. Massanet、Isidro G. Collado
DOI:10.1016/s0040-4020(01)80355-0
日期:——
The syntheses of several 3-(1,1-dimethylallyl)coumarins, simple or bearing additional furan or pyran rings is achieved starting from the corresponding C-3 unsubstituted derivatives. The key step involves Ireland-Claisen rearrangements of allyl esters.
Synthesis and Evaluation of Efavirenz (SustivaTM) Analogues as HIV-1 Reverse Transcriptase Inhibitors: Replacement of the Cyclopropylacetylene Side Chain
作者:Anthony J. Cocuzza、Dennis R. Chidester、Beverly C. Cordova、Susan Jeffrey、Rodney L. Parsons、Lee T. Bacheler、Susan Erickson-Viitanen、George L. Trainor、Soo S. Ko
DOI:10.1016/s0960-894x(01)00192-5
日期:2001.5
Two series of efavirenz analogues have been developed: one in which the cyclopropane ring has been replaced by small heterocycles and another in which the entire acetylenic side chain has been replaced by alkyloxy groups. Several members of both series show equivalent potency to efavirenz against both wild-type virus and the key K103N mutant. (C) 2001 DuPont Pharmaceuticals Company. Published by Elsevier Science Ltd. All rights reserved.