DMAP Catalyzed One-Pot Curtius Rearrangement Using 1,1-Dimethyl-2,2,2-trichloroethoxycarbonyl Azide
作者:Ken Lin、Hongjian Lu
DOI:10.1021/acs.orglett.3c01580
日期:2023.6.23
of a controllable, base-free, one-pot Curtius rearrangement using 1,1-dimethyl-2,2,2-trichloroethoxycarbonyl azide (DMTN3) with 4-(dimethylamino)pyridine (DMAP) as a catalyst. The scope of this catalytic process covers a range of primary, secondary, and tertiary alkyl and aryl carboxylic acids that allow the efficient stereospecific construction of alkyl or aryl isocyanates. Examples are reported of
Macamides and their synthetic analogs: Evaluation of in vitro FAAH inhibition
作者:Hui Wu、Charles J. Kelley、Alejandro Pino-Figueroa、Huyen D. Vu、Timothy J. Maher
DOI:10.1016/j.bmc.2013.06.034
日期:2013.9
Maca (Lepidium meyenii), a traditional food crop of the Peruvian Andes is now widely touted as a dietary supplement. Among the various chemical constituents isolated from the plant are a unique series of non-polar, long-chain fatty acid N-benzylamides known as macamides. We have synthesized 11 of the 19 reported macamides and have tested each as potential inhibitors of the human enzyme, fatty acid amide hydrolase (FAAH). The five most potent macamides were FAAH inhibitors (IC50 = 10-17 mu M). These amides were derivatives of oleic, linoleic and linolenic acids and benzylamine or 3-methoxybenzylamine. Of the three compounds evaluated in a pre-incubation time study, two macamides were not irreversible inhibitors of FAAH. The third, a carbamate structurally related to macamides, was shown to be an irreversible inhibitor of FAAH (IC50 = 0.153 mu M). (C) 2013 Elsevier Ltd. All rights reserved.