Maleate, tosylate, fumarate and oxalate salts of 5-(1-(S)-amino-2-hydroxyethyl)-N-[(2,4-difluorophenyl)-methy]-2-[8-methoxy-2-(triflouromethy)-5-quinoline]-4-oxazolecarboxamide and preparation process therefore
申请人:Chen Xiaoming
公开号:US20080108818A1
公开(公告)日:2008-05-08
Disclosed are maleate, tosylate, fumarate, and oxalate salts of the compound 5-(1(S)-Amino-2-Hydroxyethyl)-N-[(2,4-Difluorophenyl)-Methyl]-2-[8-Methoxy-2-(Trifluoromethyl)-5-Quinoline]-4-Oxazolecarboxamide, represented by Formula I, and methods of preparing the same.
A process for producing a compound of formula ID:
where R1 is haloalkyl, R2 and R4 are alkyl, R5 is generally hydrogen or alkyl and R6 is an acid labile group, by reacting a compound containing a substituent -C(R3X)NCH2C(O)OR4, where R3 is hydrogen or alkyl and X is O or S, with an alkali metal amide base and a compound R6NHCH(R5)C(O)R7 where R7 is an activated acid moiety.
一种生产式 ID 化合物的工艺:
其中 R1 为卤代烷基,R2 和 R4 为烷基,R5 一般为氢或烷基,R6 为易受酸作用的基团,其方法是将含有取代基-C(R3X)NCH2C(O)OR4(其中 R3 为氢或烷基,X 为 O 或 S)的化合物与碱金属酰胺基和化合物 R6NHCH(R5)C(O)R7(其中 R7 为活化的酸分子)反应。
Process for making a substituted oxazole
申请人:Schering Corporation
公开号:EP2385051A1
公开(公告)日:2011-11-09
A process for making a compound of formula IXab:
by reacting an anhydride with a compound containing the group -C(SCH3)NCH2CO2Et to produce an oxazole ester, hydrolysing the ester and reacting with an appropriately protected amino salt to give the desired compound.
PROCESS FOR THE PRODUCTION OF SUBSTITUTED 5-QUINOLYL-OXAZOLES AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
申请人:Cutarelli Timothy D.
公开号:US20100324295A1
公开(公告)日:2010-12-23
The present invention relates a process for the preparation of a compound of the formula:
wherein R
1
, R
2
, R
6
, R
9
and R
10
are as described herein. The compounds are inhibitors of phosphodiesterase 4 (PDE4).