Tert-butyl 3,8-diazabicyclo[4.2.0]octane-3-carboxylate → (1R,6S)-2-(3,8-diaza-bicyclo[4.2.0]oct-8-yl)quinoxaline

Participants

Reaction Steps

The title compound was prepared in a manner analogous to Intermediate 2, substituting (1R,6S)3,8-diaza-bicyclo[4.2.0]octane-3-carboxylic acid tert-butyl ester for 3,8-diaza-bicyclo[4.2.0]octane-3-carboxylic acid tert-butyl ester in Step A. MS (ESI) mass calcd. for C14H16N4, 240.3; m/z found, 241.2 [M+H]+. 1H NMR (CDCl3): 8.15 (s, 1H), 7.86 (dd, J=8.4, 1.0, 1H), 7.67 (dd, J=8.4, 1.0, 1H), 7.57-7.34 (m, 1H), 7.40-7.34 (m, 1H), 4.45-4.37 (m, 1H), 4.17-4.10 (m, 1H), 3.86 (dd, J=7.5, 3.4, 1H), 3.57 (dd, J=14.3, 2.0, 1H), 3.10-3.05 (m, 2H), 2.98 (s, 1H), 2.81-2.62 (m, 2H), 2.14-2.03 (m, 1H), 1.84-1.73 (m, 1H).

Provenance & Evidence