570403-14-4

Upstream product

• 1126-09-6 4-carbethoxypiperidine 
• 570403-04-2 5,6-dichloro-N-[4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)-1,3-thiazol-2-yl]nicotinamide 
• 570407-10-2 4-(4-chlorothiophen-2-yl)-1,3-thiazol-2-amine 
• 17766-28-8 cyclohexylpiperazine 
• 570407-42-0 4-(4-chloro-2-thienyl)-5-(4-cyclohexyl-1-piperazinyl)-2-thiazolamine 
• 931395-73-2 6-(4-(ethoxycarbonyl)piperidin-1-yl)-5-chloropyridine-3-carboxylic acid 
• 41667-95-2 5,6-dichloronicotinic acid 

Relevant academic research and scientific papers

Preparation method of thrombocyte increasing agent

The invention relates to a preparation method of a thrombocyte increasing agent. The preparation method comprises the following steps: enabling a midbody 1 and a midbody 2 to perform amidation in the presence of a catalyst in an aprotic solvent; and adding alkali into a solvent of a midbody A to perform the alkaline hydrolysis reaction to obtain a target compound. The midbody 2 is firstly synthesized and then reacts with the midbody 1; and a synthetic route of the method is a converging reaction, so that the yield is increased, and convenience in quality control is achieved. In addition, by studying the reaction amplification feasibility, the operation such as column chromatography is avoided, the method is more suitable for an industrialized production process, and the emission of waste liquid is reduced. A product obtained by the route is high in purity, the yield is high, the pollution is small, and the preparation method is suitable for the industrialized production.

2-ACYLAMINOTHIAZOLE DERIVATIVE OR SALT THEREOF

A 2-acylaminothiazole derivative or a pharmaceutically acceptable salt thereof having an excellent effect of proliferating human c-mpl-Ba/F3 cells and an activity of increasing platelets based on the effect of promoting the formation of megakaryocytic colonies. A compound or a pharmaceutically acceptable salt thereof useful in treating thrombocytopenia.