PROCESS FOR PREPARING SALICYLOYL-L-CARNITINE HYDROCHLORIDE
申请人:DRUG'ON PHARMA SWITZERLAND AG
公开号:US20190202775A1
公开(公告)日:2019-07-04
The present invention relates to a process for preparing 3-(2-hydroxybenzoyloxy)-4-(trimethylammonio)butyrobetaine hydrochloride of formula (I),
wherein the process comprises reacting 3-hydroxy-4-(trimethylammonio)butyrobetaine or a salt thereof with a 2-alkoxybenzoyl chloride of formula (III),
and where R is selected from benzyl and branched C3-C6 alkyl groups.
The present invention further relates to compounds of formula (II) and salts thereof, where R is selected from benzyl and branched C3-C6 alkyl groups, and to a process for preparing same.
Beta-alanine derivatives and their use as receptor anatgonists
申请人:——
公开号:US20030018193A1
公开(公告)日:2003-01-23
A beta-alanine derivative of the formula (I) wherein R
1
is hydrogen atom or an amino protective group; A is a lower alkylene group or a lower alkenylene group; R
2
is hydrogen atom or an amino group which may be substituted with an acyl group; R
3
is hydrogen atom or an aryl or aralkyl group which may be substituted with one or more of hydroxy and/or lower alkoxy, a moiety represented by the formula (II), which is a bivalent N-containing 6- to 8-membered heterocyclic group, or a pharmaceutically acceptable salt thereof.
Process for preparing salicyloyl-L-carnitine hydrochloride
申请人:DRUG'ON PHARMA SWITZERLAND AG
公开号:US10723691B2
公开(公告)日:2020-07-28
The present invention relates to a process for preparing 3-(2-hydroxybenzoyloxy)-4-(trimethylammonio)butyrobetaine hydrochloride of formula (I),
wherein the process comprises reacting 3-hydroxy-4-(trimethylammonio)butyrobetaine or a salt thereof with a 2-alkoxybenzoyl chloride of formula (III),
and where R is selected from benzyl and branched C3-C6 alkyl groups.
The present invention further relates to compounds of formula (II) and salts thereof, where R is selected from benzyl and branched C3-C6 alkyl groups, and to a process for preparing same.
本发明涉及一种制备式(I)的 3-(2-羟基苯甲酰氧基)-4-(三甲氨基)丁基甜菜碱盐酸盐的工艺、
其中,该工艺包括将 3-羟基-4-(三甲氨基)丁基甜菜碱或其盐与式 (III) 的 2-烷氧基苯甲酰氯反应、
其中 R 选自苄基和支链 C3-C6 烷基。
本发明还涉及式(II)化合物及其盐(其中 R 选自苄基和支链 C3-C6 烷基)以及制备方法。
BETA-ALANINE DERIVATIVES AND THEIR USE AS RECEPTOR ANTAGONISTS