4-(Bromomethyl)-1,2-difluorobenzene → (S)-2-(tert-butoxy)-2-(4-(4-chlorophenyl)-1-(3,4-difluorobenzyl)-6-methyl-7-oxo-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-5-yl)acetic acid

Participants

Reaction Steps

The title compound was prepared in a manner similar to that described in Example 2 from methyl 2-(tert-butoxy)-2-(4-(4-chlorophenyl)-6-methyl-7-oxo-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-5-yl)acetate and 3,4-difluorobenzyl bromide. The crude racemic mixture was purified by chiral chromatography to give (S)-2-(tert-butoxy)-2-(4-(4-chlorophenyl)-1-(3,4-difluorobenzyl)-6-methyl-7-oxo-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-5-yl)acetic acid. 1H NMR (400 MHz, CHLOROFORM-d) ppm 7.68-7.59 (m, 1H), 7.52-7.45 (m, 1H), 7.46-7.39 (m, 1H), 7.17-6.98 (m, 4H), 6.06-5.99 (m, 1H), 5.86-5.71 (m, 1H), 5.38-5.32 (s, 1H), 3.64 (s, 3H), 1.02 (s, 9H); LCMS (m/z) ES+=515 (M+1).

Provenance & Evidence