HCID 22905647, compound → HCID 22905656, compound

Participants

Reaction Steps

Deacetylation of 31a was achieved as in the case of 29a. Product 31b was obtained as a white solid (79% yield), mp 164°-165° C. Spectral data: 1H NMR (CD3SOCD3): δ 1.25 (s, 6H), 1.90 (br s, 3H), 2.10 (s, 3H), 2.20 (s, 3H), 3.65 (br s, 2H), 7.85 (br s, 1H); 13C NMR (CD3SOCD3): δ 11.85, 12.75, 17.24, 23.41, 24.68, 42.57, 64.86, 117.90, 122.01, 124.93, 133.86, 137.71, 150.64, 168.32; CI-MS: m/z 248 (MH+, base), 230, 205, 190, 167; CI-HRMS (M+H+): Calcd. for C15H22NO2 248.1650, fnd. 248.1644. Anal: calcd. for C15H21NO2C, 72.7, H, 8.50, N, 5.70, fnd. C, 72.86, H, 8.46, N, 5.59.

Provenance & Evidence