126955-75-7

Upstream product

• 6494-19-5 3-methyl-6-nitro-1H-indazole 
• 31786-45-5 2-bromo-6-methoxybenzoic acid 
• 146463-87-8 ethyl 2-(N-ethoxycarbonyl-N-pivaloyl)amino-6-(tetrahydropyran-2-yloxy)benzoate 
• 154351-20-9 ethyl 2-(N-ethoxycarbonyl-N-pivaloyl)amino-6-methoxybenzoate 
• 53600-33-2 6-methoxyanthranilic acid 

Downstream Products

• 142854-09-9 6-amino-1-(2-carboxy-3-methoxyphenyl)-3-methylindazole 
• 791559-34-7 2-(6-Bromo-3-methyl-indazol-1-yl)-6-methoxy-benzoic acid 

Relevant academic research and scientific papers

PROCESSES FOR PRODUCING PYRAZOLOACRIDONE DERIVATIVE AND INTERMEDIATE THEREFOR

(wherein R represents lower alkyl; R1 represents a hydrogen atom, -CH2X or -OC(=O)R3; and R2 represents a hydrogen atom, nitro, halogen, substituted or unsubstituted lower alkyl, substituted or unsubstituted low

Synthesis of a 6H-pyrazolo[4,5,1-de]acridin-6-one derivative: A useful intermediate of antitumour agents

A 6H-pyrazolo[4,5,1-de]acridin-6-one derivative, a useful intermediate of antitumor agents, was prepared by a facile synthetic route from 2-bromobenzoic acid and 6-nitroindazole involving a halogenocopper(I)-catalyzed Ullmann coupling reaction and Friedel-Crafts cyclization.

Pyrazoloacridone derivatives

Disclosed is pyrazoloacridone derivatives represented by formula (I): STR1 wherein: each of R1a, R1b, R1c and R1d independently represents hydrogen, lower alkyl, --(CH2)p --X wherein p repr