3-Bromoimidazo[1,2-a]pyridin-8-ylamine synthesis

Yield: 90%

Reaction Conditions:

Stage #1:N-(3-bromoimidazo[1,2-a]pyridin-8-yl)acetamide with hydrogenchloride;water in ethanol for 2 h;Reflux;
Stage #2: with sodium hydroxide in ethanol;water; pH=9

References:

Huang, Wei-Sheng;Metcalf, Chester A.;Sundaramoorthi, Raji;Wang, Yihan;Zou, Dong;Thomas, R. Mathew;Zhu, Xiaotian;Cai, Lisi;Wen, David;Liu, Shuangying;Romero, Jan;Qi, Jiwei;Chen, Ingrid;Banda, Geetha;Lentini, Scott P.;Das, Sasmita;Xu, Qihong;Keats, Jeff;Wang, Frank;Wardwell, Scott;Ning, Yaoyu;Snodgrass, Joseph T.;Broudy, Marc I.;Russian, Karin;Zhou, Tianjun;Commodore, Lois;Narasimhan, Narayana I.;Mohemmad, Qurish K.;Iuliucci, John;Rivera, Victor M.;Dalgarno, David C.;Sawyer, Tomi K.;Clackson, Tim;Shakespeare, William C. [Journal of Medicinal Chemistry,2010,vol. 53,# 12,p. 4701 - 4719] Location in patent:experimental part