Process Development and GMP Production of a Potent NAE Inhibitor Pevonedistat
摘要:
A practical synthesis of a novel NEDD8-activating enzyme (NAE) inhibitor pevonedistat (MLN4924) is described. Key steps include an enantioselective synthesis of an amino-diol cyclopentane intermediate containing three chiral centers and a novel, regioselective sulfamoylation using N-(tert-butoxycarbonyl)-N-[(triethylenediammonium)sulfonyl]azanide. The linear process, involving six solid isolations, has been carried out in multiple cGMP productions on 15-30 kg scale to produce pevonedistat in 98% (a/a) chemical purity and 25% overall yield.
N-(tert-Butoxycarbonyl)-N-[(triethylenediammonium)sulfonyl]azanide: A Convenient Sulfamoylation Reagent for Alcohols
摘要:
A convenient and efficient procedure is described for the sulfamoylation of alcohols using N-(tertbutoxycarbonyl)-N-[(triethylenediammonium)sulfonyl]azanide (1). The ambient temperature stable reagent 1 reacts with phenols as well as primary and secondary alcohols to give high to modest yields. The relative reaction rate of substrates was determined (primary > phenol > secondary tertiary). The reagent's utility as a selective sulfamoylation reagent with polyols is also demonstrated.