Читать книгу Routes to Essential Medicines - Peter J. Harrington - Страница 84

Draw the structures of the retrosynthetic analyses for three alternative routes to bupivacaine from the same starting materials (2,6‐dimethylaniline, picolinic acid, 1‐bromobutane) using the same transformations (catalytic hydrogenation, amide C─N bond formation, N‐alkylation) in a different order.