Towards the synthesis of osteoclast inhibitor SB-242784
作者:Jose J. Conde、Michael McGuire、Michael Wallace
DOI:10.1016/s0040-4039(03)00544-6
日期:2003.4
Osteoclast inhibitor SB-242784 (1) was prepared from pivotal indol intermediate 4. A ‘Stille’ cross coupling of organotin 2c with bromo acrylate 11 afforded diene 12 which was also obtained via a reduction–isomerization process of enyne 16. Bromoamide 3 was prepared from the corresponding acid 7 which was readily obtained from bromopyruvic acid.