p. 8475 - 8482
(2012/04/04)(5-benzyloxy-1-ethyl-2,4,6-trimethyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-2-yl)methanol
acetic anhydride
tert-butyl 5-benzyloxy-1-ethyl-2,4,6-trimethyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxylate
tert-butyl 5-benzyloxy-2,4,6-trimethyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-2-carboxylate