5,7-Dichloroindoline → 5-Chloro-3-(5,7-dichloro-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-dichloro-1-[(1R)-1-(methoxymethyl)propyl]-2(1H)-pyrazinone and 5,7-dichloroindoline as the starting materials. mp 143–146° C.; 1H NMR (300 MHz, CDCl3): δ 7.15 (d, J=1.8 Hz, 1 H), 7.09 (d, J=1.8 Hz, 1 H), 7.03 (s, 1 H), 4.94–4.90 (m, 1 H), 4.32 (t, J=8.1 Hz, 2 H), 3.65 (dd, J=10.6, 5.5 Hz, 1 H), 3.54 (dd, J=10.7, 3.3 Hz, 1 H), 3.33 (s, 3 H), 3.10 (t, J=8.1 Hz, 2 H), 1.88–1.70 (m, 2 H), 0.91 (t, J=7.3 Hz, 3 H); HRMS (ESI) calcd for C17H19N3O2Cl3 (M+H)+: 402.0543; found m/z 402.0568.

Provenance & Evidence