A simple, safe and efficient process for the recycle of tributyltin chloride from tributyltin hydroxide is developed and its reuse in the synthesis of 5-substituted-1H-tetrazoles is successfully demonstrated, which paved a way to reduce the toxic tin waste significantly. Recycling of tributyltin chloride is possible over six cycles without loss of its activity.
PROLINAMIDE-TETRAZOLE DERIVATIVES AS NK3 RECEPTOR ANTAGONISTS
申请人:Han Bo
公开号:US20080306089A1
公开(公告)日:2008-12-11
The present invention relates to a compound of formula I
wherein
R
1
, R
2
, R
3
, and n are as defined herein or to a pharmaceutically acceptable acid addition salt thereof. These compounds are NK3 receptor antagonists, useful for the treatment of such disorders as depression, pain, bipolar disorders, psychosis, Parkinson's disease, schizophrenia, anxiety, and attention deficit hyperactivity disorder (ADHD).
Prolinamide-tetrazole derivatives as NK3 receptor antagonists
申请人:Hoffmann-La Roche Inc.
公开号:US07501422B2
公开(公告)日:2009-03-10
The present invention relates to a compound of formula I
wherein
R1, R2, R3, and n are as defined herein or to a pharmaceutically acceptable acid addition salt thereof. These compounds are NK3 receptor antagonists, useful for the treatment of such disorders as depression, pain, bipolar disorders, psychosis, Parkinson's disease, schizophrenia, anxiety, and attention deficit hyperactivity disorder (ADHD).
[EN] PROLINAMIDE-TETRAZOLE DERIVATIVES AS NK3 RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE PROLINAMIDE-TÉTRAZOLE CONVENANT COMME ANTAGONISTES DU RÉCEPTEUR NK-3
申请人:HOFFMANN LA ROCHE
公开号:WO2008148688A1
公开(公告)日:2008-12-11
[EN] The present invention relates to a compound of formula (I) : wherein R1 is cycloalkyl or is phenyl unsubstituted or substituted by one or two halogen atoms; R2 is hydrogen or halogen; R3 is hydrogen, CN, lower alkoxy, lower alkyl or halogen; n is 0, 1 or 2; or to a pharmaceutically suitable acid addition salt thereof. It has been found that the present compounds are high potential NK-3 receptor antagonists for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia, anxiety and attention deficit hyperactivity disorder (ADHD). [FR] La présente invention concerne un composé représenté par la formule (I) ou l'un de ses acides d'addition pharmaceutiquement admis. Dans cette formule, R1 est cycloalkyle. R1 peut également être phényle non substitué ou phényle substitué par un ou deux atomes halogènes. R2 est hydrogène ou halogène. R3 est hydrogène, CN, alcoxy inférieur ou halogène. Enfin, n vaut 0, 1 ou 2. Il s'est avéré que les composés de l'invention sont des antagonistes à fort potentiel du récepteur NK-3 convenant au traitement de la dépression, de la douleur, de la psychose, de la maladie de Parkinson, de la schizophrénie, de l'anxiété et du syndrome d'hyperactivité avec déficit d'attention.