The present invention provides compounds which bind to the ubiquitously expressed E3 ligase protein cereblon (CRBN) and their use for the treatment of abnormal cellular proliferation. The present invention also provides compounds that may be used as synthetic intermediates in the synthesis of bifunctional compounds used for targeted protein degradation.
2-Substituted Glutarimides via Preformed Wittig Reagents
作者:M. J. Wanner、G. J. Koomen
DOI:10.1055/s-1988-27558
日期:——
Triphenylphosphoranylideneacetamide (1) reacts with some Michael-acceptors to give crystalline 2-triphenylphosphoranylidene glutarimides. The Wittig reaction of 2 with several aldehydes in refluxing 1,2-dichloroethane affords the corresponding 2-alkylideneglutarimides 7 in 50-98% yield.
Quinolizidine alkaloids are synthesized from glutarimide yields via a piperidine ring transformation that is based on the lupinine biosynthesis. A short enantioselective bispiperidine synthesis usingR-phenylglycinol as a chiral precursor is described.
New phosphonium ylides by functionalization of triphenylphosphoranylideneacetamide
作者:Martin J. Wanner、Gerrit-Jan Koomen
DOI:10.1016/s0040-4039(00)91662-9
日期:1992.3
Triphenylphosphoranylideneacetamide undergoes Michael reactions with several acceptors, giving rise, apart from the normal Michael adducts, to the formation of different products like glutarimide ylides and stabilized iminophosphoranes. Wittig reactions with these new ylides lead to a variety of alpha,beta-unsaturated carbonyl compounds.