2,3-Dibromo-4-hydroxy-1-methyl-1H-pyrrolo[2,3-c]pyridine-5-carboxylic acid ethyl ester → 2,3-Dibromo-4-(2,2-dimethyl-propionyloxy)-1-methyl-1H-pyrrolo[2,3-c]pyridine-5-carboxylic acid ethyl ester

Participants

Reaction Steps

Prepared in analogy to that of 1-benzyl-4-(2,2-dimethyl-propionyloxy)-2,3-dimethyl-1H-pyrrolo[2,3-c]pyridine-5-carboxylic acid ethyl ester from 2,3-Dibromo-4-hydroxy-1-methyl-1H-pyrrolo[2,3-c]pyridine-5-carboxylic acid ethyl ester. The title product, 1H NMR (200 MHz, CDCl3): δ (ppm)=8.62 (s, 1H), 4.42 (q, 2H, J=7.0 Hz), 3.94 (s, 3H), 1.49 (s, 9H), 1.42 (t, 3H, J=7.0 Hz).

Provenance & Evidence