, 0H, Ar-H).^00^C-NMR (000 MHz, CDCl~0~) δ (ppm): 00.00 (CH~0~), 00.00 (CH~0~), 000.00 (0CH), 000.00 (CH), 000.00 (CH), 000.00 (CH), 000.00 (CH), 000.00 (0CH), 000.00 (CH), 000.00 (CH), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C), 000.00 (C=O). Anal. calcd. For C~00~H~00~N~0~O~0~ (000.00): C, 00.00; H, 0.00; N, 00.00. Found: C, 00.00; H, 0.00; N, 00.00%.  *0,0-Dimethyl-0-(0-c