1174718-25-2

Upstream product

• 88-13-1 3-Thiophene carboxylic acid 
• 100523-84-0 2-bromothiophene-4-carboxylic acid 
• 170355-38-1 5-bromo-3-thiophenecarboxylic acid ethyl ester 
• 67492-50-6 (3,5-dichlorophenyl)boronic acid 

Downstream Products

• 1174718-26-3 5-(3,5-dichlorophenyl)-2-ethoxyoxalyl-thiophene-3-ethyl formate 
• 1174718-28-5 4-chloro-2-(3,5-dichlorophenyl)-thieno[2,3-d]pyridazine-7-carboxylic acid ethyl ester 
• 1174718-27-4 2-(3,5-dichlorophenyl)-4-oxo-4,5-dihydro-thieno[2,3-d]pyridazine-7-carboxylic acid ethyl ester 
• 1174717-91-9 2-(3,5-dichlorophenyl)-4-(3-piperidinemethyl)-thieno-[2,3-d]pyridazine-7-carboxylic acid amide 
• 1174718-30-9 4-(1-Boc-3-piperidinemethyl)-2-(3,5-dichlorophenyl)-thieno[2,3-d]pyridazine-7-carboxylic acid ethyl ester 

Relevant academic research and scientific papers

THIENOPYRIDAZINE COMPOUNDS, THEIR PREPARATIONS, PHARMACEUTICAL COMPOSITIONS AND USES

The present invention relates to thienopyridazine compounds of formula (I), their pharmaceutically acceptable salts or hydrates, wherein R1 and R2 are independently H or C1-4 alkyl, R3 is a saturated or unsaturated 5- or 6- membered ring containing N, S or O, or its optical isomers, R4 is a halophenyl monosubstituted or disubstituted at any position. The present invention provides the preparation methods of these compounds, pharmaceutical compositions containing these compounds and the uses of these compounds, particularly in treating cancer.