WO2024180562 - A PROCESS FOR THE PREPARATION OF PURE CRYSTALLINE RIMEGEPANT AND ITS SALTS THEREOF
National phase entry is expected:
Publication Number
WO/2024/180562
Publication Date
06.09.2024
International Application No.
PCT/IN2024/050173
International Filing Date
19.02.2024
Title **
[English]
A PROCESS FOR THE PREPARATION OF PURE CRYSTALLINE RIMEGEPANT AND ITS SALTS THEREOF
[French]
PROCÉDÉ DE PRÉPARATION DE RIMÉGÉPANT CRISTALLIN PUR ET DE SES SELS
Applicants **
NATCO PHARMA LIMITED
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
Inventors
TALLAPANENI, Venkateswarlu
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
MEKA, Kalyana Chowdary
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
ACHINA, Srishailam
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
DUDDU, Swapna
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
SERIGUDA, Malla Reddy
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
MUDDASANI, Pulla Reddy
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
NANNAPANENI, Venkaiah Chowdary
Natco House, Road No.2
Banjara Hills.
Hyderabad 500034, IN
Priority Data
202341014130
02.03.2023
IN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| * | |
International Searching Authority |
IP India
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
|
Recalculate
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 938 | |
| EPO | Filing, Examination | 6447 | |
| Japan | Filing | 531 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 3235 |
Total: 11726 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present invention relates to an improved process for the preparation of (5S,6S,9R)-5-amino-6-(2,3difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b] pyridin-9-yl-4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)-1-piperidine carboxylate compound of formula-1 with desfluro impurity at less than 0.1% level and in its crystalline form which is represented by the following structural formula-1.[French]
La présente invention concerne un procédé amélioré pour la préparation d'un composé carboxylate de (5S,6S,9R)-5-amino-6-(2,3difluorophényl)-6,7,8,9-tétrahydro-5H-cyclohepta[b] pyridin-9-yl-4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)-1-pipéridine de formule-1 ayant une impureté défluro à moins de 0,1% de niveau et sous sa forme cristalline qui est représentée par la formule développée 1 suivante.