- Convergent Synthesis of the Renin Inhibitor Aliskiren Based on C5-C6 Disconnection and CO2H-NH2 Equivalence
-
A novel synthesis of the renin inhibitor aliskiren based on an unprecedented disconnection between C5 and C6 was developed, in which the C5 carbon acts as a nucleophile and the amino group is introduced by a Curtius rearrangement, which follows a simultaneous stereocontrolled generation of the C4 and C5 stereogenic centers by an asymmetric hydrogenation. Operational simplicity, step economy, and a good overall yield makes this synthesis amenable to manufacture on scale.
- Cini, Elena,Banfi, Luca,Barreca, Giuseppe,Carcone, Luca,Malpezzi, Luciana,Manetti, Fabrizio,Marras, Giovanni,Rasparini, Marcello,Riva, Renata,Roseblade, Stephen,Russo, Adele,Taddei, Maurizio,Vitale, Romina,Zanotti-Gerosa, Antonio
-
p. 270 - 283
(2016/03/04)
-
- NOVEL PROCESS FOR THE PREPARATION OF RENIN INHIBITORS
-
The present invention relates to an improved process for the preparation of compound of Formula-II, which is an intermediate in the preparation of Aliskiren and further conversion of compound of Formula-II into Aliskiren or its pharmaceutically acceptable salts. Formula-II wherein Ri and R2 are independently of one another H, Ci-C6 alkyl, C- C6 halogenalkyl, C]-C6 alkoxy, Ci-C6 alkoxy-Ci-C6 alkyl, or Ci-C6 alkoxy-Ci- C6 alkyloxy and X is halogen selected from fluoro, chloro, bromo and iodo
- -
-
-