5-Bromo-7-chloroindoline → 5-Bromo-3-(5-bromo-7-chloro-2,3-dihydro-1H-indol-1-yl)-1-[(1R)-1-(methoxymethyl)propyl]-2(1H)-pyrazinone

Participants

Reaction Steps

Prepared in a similar fashion as described for Example 413 using 3,5-dibromo-1-[(1R)-1-(methoxymethyl)propyl]-2(1H)-pyrazinone and 5-bromo-7-chloroindoline as the starting materials. mp 118° C.; 1H NMR (300 MHz, CDCl3): δ 7.31 (s, 1 H), 7.24 (s, 1 H), 7.13 (s, 1 H), 4.98-4.90 (m, 1 H), 4.32 (t, J=7.9 Hz, 2 H), 3.66 (dd, J=10.7, 5.9 Hz, 1 H), 3.55 (dd, J=10.6, 3.3 Hz, 1 H), 3.35 (s, 3 H), 3.13 (t, J=7.9 Hz, 2 H), 1.85-1.74 (m, 2 H), 0.93 (t, J=7.3 Hz, 3 H); HRMS (ESI) calcd for C17H19N3O2Br2Cl (M+H)+: 489.0543; Found m/z 489.9534.

Provenance & Evidence