| NHWA PHARMA. CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 20110306638 | BENZISOXAZOLE PIPERIDINYL DERIVATIVES, PHARMACEUTICAL COMPOSITIONS COMPRISING THE DERIVATIVES AND THEIR USE - The invention relates to a benzisoxazolyl piperidine derivative having the following general formula, a salt or a hydrate thereof, | 12-15-2011 |
| 20110294822 | Substituted Phenylpiperazinyl Aralkylalcohol Derivatives, Pharmaceutical Compositions Containing Such Derivatives and Uses Thereof - The invention relates to a substituted phenylpiperazine aryl alkanol derivative represented by the following general formula and its salt and hydrate, | 12-01-2011 |
| 20110105503 | ARALKYL PIPERIDINE DERIVATIVES AND THEIR USES AS ANTALGIC OR ATARACTIC AGENT - The present invention relates to aralkyl piperidine derivatives, compositions containing the same, and their uses in the preparation of antalgic or ataractic medicament. The said derivatives are a free base of the compound represented by the following formula or a salt thereof. The pharmacological experiments show that they display favorable antalgic, ataractic activity and low side effects. | 05-05-2011 |
| 20090099362 | Process for the preparation of gabapentin hydrochloride - A process for preparation of gabapentin hydrochloride by converting 1,5-dicyano-2,4-dioxo-3-azaspiro[5,5]-undecane into 1,5-diaminoformyl-2,4-dioxo-3-azaspiro[5,5]-undecane at a temperature of 65° C. to 85° C. in the presence of a strong acid, and then carrying out Hofmann rearrangement under an alkaline condition. The starting material of the process is readily available. The process is simple, and can reduce the purification procedure of intermediates, reduce production cost, and obtain product with higher purity. | 04-16-2009 |
