54393-21-4Relevant articles and documents
Compounds for modulating TRPV3 function
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Page/Page column 43-44, (2010/11/28)
The present application relates to compounds and methods for treating pain and other conditions related to TRPV3.
Enantioselective hydrogenation of tetrasubstituted olefins of cyclic β-(acylamino)acrylates
Tang, Wenjun,Wu, Shulin,Zhang, Xumu
, p. 9570 - 9571 (2007/10/03)
Hydrogenation of a series of cyclic β-(acylamino)acrylates with tetrasubstituted olefins has been accomplished successfully with the use of Ru catalysts with chiral biaryl ligands such as C3-TunaPhos, and up to over 99% ee's have been achieved. This methodology provides an efficient catalytic method for the synthesis of both cis and trans chiral cyclic β-amino acid derivatives. Copyright
Steric and Conformational Effects in Nicotine Chemistry
Seeman, Jeffrey I.,Secor, Henry V.,Chavdarian, Charles G.,Sanders, Edward B.,Bassfield, Ronald L.,Whidby, Jerry F.
, p. 3040 - 3048 (2007/10/02)
The stereoselectivity of iodomethylation of nicotine and seven nicotine analogues having pyridine alkyl groups was determined by using 13C NMR.Alkylation at the pyridine (N) and at the pyrrolidine (N') nitrogens was observed.Two modes of N'-iodomethylation occur, cis and trans to the pyridine ring.N'-Iodomethylation occurs regioselectively cis to the pyridine ring for all compounds examined.The N/N' and N'cis/N'trans ratios for the nicotinoids were evaluated with regard to (1) the orientation of the N'-methyl group in the free base, (2) conformational properties of the pyridine ring with respect to the pyrrolidine ring, and (3) steric hindrance and buttressing effects on the pyridine nitrogen.The Curtin-Hammett principle and the Winstein-Holness equation are used to analyse reactions.