New processes

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 207/38 (2006.01) A61K 31/4015 (2006.01) C07C 269/06 (2006.01) C07C 271/22 (2006.01) C07D 207/263 (2006.01) C07D 207/36 (2006.01)

Patent

CA 2711529

The invention relates to a process for producing NEP inhibitors or prodrugs thereof, in particular NEP inhibitors comprising a .gamma.-amino-.delta.-biphenyl-.alpha.-methylalkanoic acid, or acid ester, backbone. In detail, the new processes, according to the present invention, are ultimately related to the synthesis of intermediates to prepare the above NEP inhibitors, namely compounds according to formula (1), or salt thereof, wherein R1 and R2 are. independently of each other, hydrogen or a nitrogen protecting group, and R3 is a carboxyl group or an ester group, preferably carboxyl group or alkyl ester.

L'invention porte sur un nouveau procédé pour produire des inhibiteurs de NEP ou des promédicaments de ceux-ci, en particulier des inhibiteurs de NEP comprenant un acide ou ester d'acide ?-amino-d-biphényl-a-méthylalcanoïque. De manière détaillée, les nouveaux procédés, selon la présente invention, sont en fin de compte corrélés à la synthèse d'intermédiaires pour préparer les inhibiteurs de NEP ci-dessus, à savoir des composés selon la formule (1), ou un sel de ceux-ci, formule dans laquelle R1 et R2 sont, indépendamment l'un de l'autre, hydrogène ou un groupe protecteur d'azote, et R3 est un groupe carboxyle ou un groupe ester, de préférence un groupe carboxyle ou un ester alkylique.

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