55114-86-8

Upstream product

• 879283-39-3 3-(2-aminophenyl)-4-methyl-1,3-thiazole-2(3H)-thione 
• 5268-73-5 3-methylthiazolo[3,2-a]benzoimidazole 
• 100-44-7 benzyl chloride 

Downstream Products

• 1226710-89-9 1-[(1Z)-1-(benzylsulfanyl)prop-1-en-2-yl]-3-methyl-1,3-dihydro-2H-benzimidazol-2-one 
• 1226710-90-2 1-[(1E)-1-(benzylsulfanyl)prop-1-en-2-yl]-3-methyl-1,3-dihydro-2H-benzimidazol-2-one 
• 1226710-91-3 1-benzyl-3-[(1Z)-1-(benzylsulfanyl)prop-1-en-2-yl]-1,3-dihydro-2H-benzimidazol-2-one 
• 1226710-88-8 1-benzyl-3-[(1Z)-1-(methylsulfanyl)prop-1-en-2-yl]-1,3-dihydro-2H-benzimidazol-2-one 

Relevant academic research and scientific papers

Access to N-thioalkenyl and N-(o-thio)aryl-benzimidazol-2-ones by ring opening of thiazolobenzimidazolium and benzimidazobenzothiazolium salts and C-O bond cleavage of an alkoxide

We report herein the synthesis of highly functionalized 1,3-dihydro-2H-benzimidazol-2-ones via a ring opening of thiazolo[3,2-a]benzimidazolium or benzimidazo[2,1-b][1,3]benzothiazol-6-ium salts and an unusual C-O bond cleavage of an alkoxide. A large variety of benzimidazolones bearing an original N-thioalkenyl or N-(o-thio)aryl group was obtained in high yields. The developed chemistry provides efficient and rapid access to the privileged benzimidazol-2-one scaffold.

PROCESS TO PREPARE NEW SUBSITUTED 1H-BENZO[d]IMIDAZOL-2(3H)-ONES, NEW INTERMEDIATES AND THEIR USE AS BACE 1 INHIBITORS

The invention relates to a new process leading to new substituted 1H-benzo[d]imidazol-2(3H)-ones of formula III and III′, to pharmaceutical compositions comprising them and to their use as therapeutic agents, particularly as BACE 1 inhibitors in the treatment of Alzheimer disease.