[3+2] Cycloaddition of trimethylenemethane (TMM) to α,β-unsaturated γ-lactam. Preparation of 5,5-fused proline surrogates
摘要:
Unsaturated lactam derived from (S)-pyroglutaminol undergoes a totally stereoselective cycloaddition reaction with (2-(acetoxymethyl)-3-allyl)trimethylsilane in the presence of Pd(P(OiPr)(3))(4) in refluxing toluene. This step was efficiently used to introduced the 5,5-fused framework desired for the preparation of novel proline surrogates. (C) 2003 Published by Elsevier Science Ltd.
The invention relates to 3-aza-bicyclo[3.3.0]octane derivatives of the formula (I) wherein R1, R2, R3, and A are as described in the description and their use as orexin receptor antagonists.
The invention relates to 3-aza-bicyclo[3.3.0]octane derivatives of the formula (I) wherein R
1
, R
2
, R
3
, and A are as described in the description and their use as orexin receptor antagonists.
[3+2] Cycloaddition of trimethylenemethane (TMM) to α,β-unsaturated γ-lactam. Preparation of 5,5-fused proline surrogates
作者:Edwin Jao、Stephane Bogen、Anil K Saksena、Viyyoor Girijavallabhan
DOI:10.1016/s0040-4039(03)01191-2
日期:2003.6
Unsaturated lactam derived from (S)-pyroglutaminol undergoes a totally stereoselective cycloaddition reaction with (2-(acetoxymethyl)-3-allyl)trimethylsilane in the presence of Pd(P(OiPr)(3))(4) in refluxing toluene. This step was efficiently used to introduced the 5,5-fused framework desired for the preparation of novel proline surrogates. (C) 2003 Published by Elsevier Science Ltd.
3-aza-bicyclo[3.3.0]octane compounds
申请人:Actelion Pharmaceuticals Ltd.
公开号:US08106215B2
公开(公告)日:2012-01-31
The invention relates to 3-aza-bicyclo[3.3.0]octane derivatives of the formula (I) wherein R1, R2, R3, and A are as described in the description and their use as orexin receptor antagonists.