The present disclosure relates to a method for preparing a metal catalyst comprising at least one ligand that is coordinated to the metal through at least one phosphorous (P) atom and at least one nitrogen (N) atom, the method comprising reacting a metal pre-cursor complex with an acid ad salt of an aminophosphine, diaminophosphine, aminodiphosphine or diaminodiphosphine, in the presence of a base.
[EN] METHOD FOR PRODUCING AMIDINE DERIVATIVES<br/>[FR] PROCÉDÉ DE PRODUCTION DE DÉRIVÉS D'AMIDINE
申请人:BIOCRYST PHARM INC
公开号:WO2016029216A2
公开(公告)日:2016-02-25
The invention provides methods and intermediates useful in the synthesis of a compound of formula (I): or a pharmaceutically acceptable salt, solvate, ester or prodrug thereof; wherein the variables are as defined herein.
PROCESS FOR MAKING TETRACYCLIC HETEROCYCLE COMPOUNDS
申请人:LI Hongming
公开号:US20170166586A1
公开(公告)日:2017-06-15
The present invention is directed to a process for making Tetracyclic Heterocycle Compounds of Formula (I) and pharmaceutically acceptable salts thereof, wherein X
1
, X
2
, R
1
, R
2
and R
3
are defined above herein. The present invention is also directed to compounds that are useful as synthetic intermediates in the process of the invention.