1305317-33-2

Upstream product

• 134-81-6 benzil 
• 1305317-31-0 8-bromo-2,3-diphenylpyrido[2,3-b]pyrazine 
• 1232431-75-2 2,3-diamino-4-bromopyridine 
• 1305317-30-9 3-amino-4-bromo-2-nitropyridine 
• 13269-19-7 3-amino-2-nitropyridine 

Downstream Products

• 1305317-35-4 8-amino-2,3-diphenylpyrido[2,3-b]pyrazine 
• 1305317-37-6 N-(2,3-diphenylpyrido[2,3-b]pyrazin-8-yl)-N'-ethylurea 
• 1305317-38-7 N-(2,3-diphenylpyrido[2,3-b]pyrazin-8-yl)-N'-phenylurea 
• 1305317-39-8 N-(3-chlorophenyl)-N'-(2,3-diphenylpyrido[2,3-b]pyrazin-8-yl)urea 
• 1305317-42-3 N-(2,3-diphenylpyrido[2,3-b]pyrazin-8-yl)-N'-ethylthiourea 
• 1305317-43-4 N-(2,3-diphenylpyrido[2,3-b]pyrazin-8-yl)-N'-phenylthiourea 

Relevant academic research and scientific papers

Preparation of novel 2,3,8-trisubstituted pyrido[3,4-b]pyrazines and pyrido[2,3-b]pyrazines

A four-step synthesis of 8-bromo-2,3-disubstituted pyrido[3,4-b]pyrazines and a six-step synthesis of 8-amino-2,3-disubstituted pyrido[3,4-b]pyrazines have been developed. A particularly valuable feature of this synthetic route is the possibility to build