Aminologics Co., Ltd. Patent applications |
Patent application number | Title | Published |
20160017389 | METHOD FOR PREPARING (2RS)-AMINO-(3S)-HYDROXY-BUTYRIC ACID AND ITS DERIVATIVES - The present invention relates to a method for easily preparing (2RS)-amino-(3S)-hydroxy-butyric acid, which is a chiral amino acid, in a high yield and a high purity using a chemical synthesis and enzymatic reduction reaction; an intermediate therefor; and a method for preparing the intermediate. | 01-21-2016 |
20140142336 | SYNTHETIC METHOD OF ENANTIOMERICALLY PURE 2,2'-DIHYDROXY-1,1'-BINAPHTHYL-3-CARBOXYLIC ACID - The present invention relates to a method for preparing enantiomerically pure compounds 1a and 1b of the following formula 1 from racemic compound 1 of the following formula 1. [formula 1] The compounds 1a and 1b of the above formula 1 respectively are important intermediates for a process for preparing the respective compounds 2 | 05-22-2014 |
20140012038 | ENANTIOMERICALLY PURE BINAPHTHOL DERIVATIVES AND METHOD FOR PREPARING THE SAME - The present invention relates to compounds 1, 1a (S-enantiomer) and 1b (R-enantiomer) of the following formula 1, and a method for preparing the same. [formula 1] The novel compound of the formula 1 is used as an important intermediate for preparing compounds 6, 6a (S-enantiomer) and 6b (R-enantiomer) of the following formula 6, which are 2,2′-binaphthol-3-aldehyde derivatives. Also, the present invention provides a method for preparing the compound of formula 1 with a very safe method at low cost. [formula 6] | 01-09-2014 |