反应详情

1.5 eq of DMAP was added to the trifluoroacetate salt of 14-cyclohexyl-3-methoxy-6-methyl-5,6,7,8-tetrahydroindolo[2,1-a][2,5]benzodiazocine-11-carboxylic acid (from Example 4) in dry DCM (0.1 M). Then 1.5 eq of EDAC.HCl was added and after 5 min of stirring at RT 1.5 eq of N,N-dimethylsulfamide. The reaction mixture was stirred overnight at RT. The solvent was removed in vacuo and the residue directly purified by RP-MS-HPLC (stationary phase: column Waters XTERRA prep. C18, 5 um, 19×100 mm. Mobile phase: MeCN/H2O buffered with 0.1% TFA). Fractions containing the pure compound were combined and freeze dried to afford the title compound as a white powder (38%).

1. customThe solvent was removed in vacuo
2. customthe residue directly purified by RP-MS-HPLC (stationary phase: column Waters XTERRA prep. C18, 5 um, 19×100 mm. Mobile phase: MeCN/H2O buffered with 0.1% TFA)
3. additionFractions containing the pure compound
4. customfreeze dried