“…HRMS (ESI): m/z calcd for C 16 (35), 112 (44), 110 (29), 96 (44), 57 (51), 43 (36), 41 (23) (20), 236 (20), 184 (20), 160 (48), 89 (35), 57 (31), 43 (24) 13 C NMR (101 MHz) δ 172.1 (C=O), 171.9 (C=O), 162.9 (CH=N), 134.5 (CAr), 131.8 (CHAr), 129.9 (CHAr), 125.6 (BrCAr), 71.6 (NCHCO 2 Me), 52.2 (CO 2 CH 3 ), 37.1 (NCH 3 ), 35.9 (NCH 3 ), 28.9 (CH 2 ), 28.7 (CH 2 ). MS (EI) m/z: 354 (M + , 5%), 270 (30), 268 (32), 224 (35), 222 (31), 173 (24), 100 (26), 89 (31), 87 (100), 72 (35), 45 (25) 13 C NMR (101 MHz) δ 172.1 (C=O), 171.9 (C=O), 162.9 (CH=N), 134.5 (CAr), 131.8 (CHAr), 129.9 (CHAr), 125.7 (BrCAr), 71.6 (NCHCO 2 Me), 52.2 (CO 2 CH 3 ), 37.1 (NCH 3 ), 35.3 (NCH 3 ), 28.9 (CH 2 ), 28.7 (CH 2 ). MS (EI) m/z: 354 (M + , 5%), 270 (30), 268 (32), 224 (35), 222 (31), 173 (24), 100 (26), 89 (31), 87 (100), 72 (35), 45 (25).…”