The Diels-Alder cycloadditions of the alpha-acetoxynitroso dienophile in water are reported. The rapid and high yielding synthesis of structurally diverse 3,6-dihydro-1,2-oxazines complements the straightforward elaboration of aminoalcohols obtained from the alpha-acetoxynitroso derivative in anhydrous medium. A rationale for this solvent-dependent product distribution is proposed.
[EN] MACROCYCLES AS PIM INHIBITORS<br/>[FR] MACROCYCLES EN TANT QU'INHIBITEURS DE PIM
申请人:AMGEN INC
公开号:WO2014022752A1
公开(公告)日:2014-02-06
The invention relates to compounds of formula (1), and salts thereof. In some embodiments, the invention relates to inhibitors or modulators of Pim-1 and/or Pim-2, and/or Pim-3 protein kinase activity or enzyme function. In still further embodiments, the invention relates to pharmaceutical compositions comprising compounds disclosed herein, and their use in the prevention and treatment of Pim kinase related conditions and diseases, preferably cancer.
Oxidative cycloaddition of hydroxamic acids with dienes or guaiacols mediated by iodine(III) reagents
作者:Hisato Shimizu、Akira Yoshimura、Keiichi Noguchi、Victor N Nemykin、Viktor V Zhdankin、Akio Saito
DOI:10.3762/bjoc.14.39
日期:——
[Bis(trifluoroacetoxy)iodo]benzene (BTI) and (diacetoxyiodo)benzene (DIB) efficiently promote the formation of acylnitroso species from hydroxamic acids in the presence of various dienes to give the corresponding hetero-Diels-Alder (HDA) adducts in moderate to high yields. The present method could be applied to the HDA reactions of acylnitroso species with o-benzoquinones generated by the oxidative dearomatization
Nitroso-Diels-Alder cycloaddition of various dienes combined with a straightforward sequence including N-O bond cleavage and oxidation reaction of the resulting (Z)-γ-aminoenone (or enal) leads to polysubstituted pyrrolic units.
Hetero Diels-Alder Reaction and Ene Reaction of Acylnitroso Species in situ Generated by Hypoiodite Catalysis
作者:Saki Uraoka、Ikumi Shinohara、Hisato Shimizu、Keiichi Noguchi、Akira Yoshimura、Viktor V. Zhdankin、Akio Saito
DOI:10.1002/ejoc.201801340
日期:2018.12.6
Firstexample of hypoiodite‐catalyzed oxidation for the in situ generation of acylnitroso species, which can be used in hetero Diels–Alder reactions with dienes and in enereactions with alkenes.