Cyclopentane-based human NK1 antagonists. Part 1: Discovery and initial SAR
摘要:
An initial investigation of the novel cyclopentane scaffold 6 afforded low nanomolar human NK1 antagonists having enhanced water solubility properties compared to morpholine 1. A synthesis of this cyclopentane scaffold, having three contiguous chiral centers, and the unexpected determination that the 1,2-trans-2,3-trans-ring stereochemistry, as opposed to the cis-ether/phenyl configuration of the known structures 1-5, is optimal for this class of antagonist are described. (c) 2006 Elsevier Ltd. All rights reserved.
Cyclopentane-based human NK1 antagonists. Part 1: Discovery and initial SAR
摘要:
An initial investigation of the novel cyclopentane scaffold 6 afforded low nanomolar human NK1 antagonists having enhanced water solubility properties compared to morpholine 1. A synthesis of this cyclopentane scaffold, having three contiguous chiral centers, and the unexpected determination that the 1,2-trans-2,3-trans-ring stereochemistry, as opposed to the cis-ether/phenyl configuration of the known structures 1-5, is optimal for this class of antagonist are described. (c) 2006 Elsevier Ltd. All rights reserved.
Versatile Method for the Synthesis of 4-Aminocyclopentenones: Dysprosium(III) Triflate Catalyzed Aza-Piancatelli Rearrangement
作者:Gesine K. Veits、Donald R. Wenz、Javier Read de Alaniz
DOI:10.1002/anie.201005131
日期:2010.12.3
A sweet dysprosition: A dysprosium(III) trifluoromethanesulfonate catalyzed rearrangement of furylcarbinols into 4‐aminocyclopentenones by a 4π electrocyclization has been developed. The aza‐Piancatelli rearrangement affords a single trans diastereomer from both aryl‐ and alkyl‐substituted furylcarbinols.