An efficient iron-catalyzed intermolecular remote C(sp3)–H heteroarylation of alkyl ketones has been developed via an iminyl radical-triggered 1,5-hydrogen-atom transfer (HAT) cascade. This protocol was amenable to a wide variety of alkyl ketones and heteroaryls, thus providing a straightforward method for the late-stage functionalization of alkylketones and heteroaryls.
Reaction of mixed carboxylic anhydrides with grignard reagents
作者:T. Terasawa、T. Okada
DOI:10.1016/0040-4020(77)80298-6
日期:1977.1
The low-temperature Grignardreaction of mixed carboxylic anhydrides derived from acid chlorides and o-anisic acid to the general synthesis of keto esters is demonstrated for compounds 1–6, although, some limitations on substrate and Grignardreagent species are also encountered; attempts in the oxa series 2 are unsuccessful, and reaction with ω-phenylpropyl Grignard species for 1 and 4 shows a drastic
[EN] GAMMA-KETOACID TETRAPEPTIDES AS INHIBITORS OF CASPASE-3<br/>[FR] TETRAPEPTIDES DE GAMMA-CETOACIDES AGISSANT EN TANT QU'INHIBITEURS DE CASPASE-3
申请人:MERCK FROSST CANADA INC
公开号:WO2000032620A1
公开(公告)日:2000-06-08
The invention encompasses the novel class of compounds represented by formula I, which are caspase-3 inhibitors. The invention also encompasses certain pharmaceutical compositions for treatment of caspase-3 mediated diseases comprising compounds of formula I.