Title:
有機酸のエステル化方法
Document Type and Number:
Japanese Patent JP2009512632
Kind Code:
A
Abstract:
The invention relates to a sulphonic acid salt of an amino acid alkyl ester The invention further relates to a process for the esterification of an organic acid into the corresponding organic acid ester comprising bringing the organic acid into contact with a strong acid and a solution comprising dialkylcarbonate in a reaction mixture. The invention further relates to the use of a sulphonic acid salt of an amino acid alkyl ester in the synthesis of a beta-lactam antibiotic.
Inventors:
Boesten, Wilhelms Hubertus Joseph
Hemskerk, dennis
Hemskerk, dennis
Application Number:
JP2008532768A
Publication Date:
March 26, 2009
Filing Date:
September 26, 2006
Export Citation:
Assignee:
DSM IP ASSETS B.V.
International Classes:
C07C229/36; C07C67/10; C07C69/78; C07C229/08; C07C229/34; C07C309/04
Domestic Patent References:
| JP2004203874A | 2004-07-22 | |||
| JP2003521534A | 2003-07-15 | |||
| JP2001500896A | 2001-01-23 | |||
| JP2008540414A | 2008-11-20 | |||
| JP2003183230A | 2003-07-03 | |||
| JP2003523990A | 2003-08-12 | |||
| JP2004075684A | 2004-03-11 | |||
| JP2001348365A | 2001-12-18 |
Foreign References:
| US1882808A | 1932-10-18 |
Attorney, Agent or Firm:
Yuichi Yamada
Masakazu Noda
Yoshinori Shimizu
Ikeda adult
Masakazu Noda
Yoshinori Shimizu
Ikeda adult