Steric and Electronic Effects Influencing β-Aryl Elimination in the Pd-catalyzed Carbon–Carbon Single Bond Activation of Triarylmethanols
作者:James R. Bour、Jacob C. Green、Valerie J. Winton、Jeffrey B. Johnson
DOI:10.1021/jo302592g
日期:2013.2.15
An analysis of the palladium-catalyzed activation of carbon–carbonsingle bonds within triarylmethanols has led to a greater understanding of factors influencing the β-aryl elimination process responsible for C–C bond cleavage. A series of competition reactions were utilized to determine that β-aryl elimination of aryl substituents containing ortho-substitution proceeds with significant preference
A Novel Synthesis of Soluble, Stable Derivatives of the Perchlorinated Trityl Radical
作者:Richard J. Bushby
DOI:10.1002/ejoc.202301136
日期:2024.2.26
Chlorination of the fluorinated triarylmethane is followed by selective nucleophilic substitution using the sodium salt of n-hexanol in n-hexanol/dimethylsulfoxide and conversion to the radical.
Triphenylbutanamines: Kinesin Spindle Protein Inhibitors with in Vivo Antitumor Activity
作者:Fang Wang、James A. D. Good、Oliver Rath、Hung Yi Kristal Kaan、Oliver B. Sutcliffe、Simon P. Mackay、Frank Kozielski
DOI:10.1021/jm201195m
日期:2012.2.23
The human mitotic kinesin Eg5 represents a novel mitotic spindle target for cancer chemotherapy. We previously identified S-trityl-L-cysteine (STLC) and related analogues as selective potent inhibitors of Eg5. We herein report on the development of a series of 4,4,4-triphenylbutan-1-amine inhibitors derived from the STLC scaffold. This new generation systematically improves on potency: the most potent C-trityl analogues exhibit K-i(aPP) <= 10 nM and GI(50) approximate to 50 nM, comparable to results from the phase II clinical benchmark ispinesib. Crystallographic studies reveal that they adopt the same overall binding configuration as S-trityl analogues at an allosteric site formed by loop L5 of Eg5. Evaluation of their druglike properties reveals favorable profiles for future development and, in the clinical candidate ispinesib, moderate hERG and CYP inhibition. One triphenylbutanamine analogue and ispinesib possess very good bioavailability (51% and 45%, respectively), with the former showing in vivo antitumor growth activity in nude mice xenograft studies.
Andrews, Adrian F.; Mackie, Raymond K.; Walton, John C., Journal of the Chemical Society. Perkin transactions II, 1980, p. 96 - 102
作者:Andrews, Adrian F.、Mackie, Raymond K.、Walton, John C.