“…C,,Hl,NO requires C, 81.0; H, 6.35; N, 5.9"/,,): 6" 8.75 (1 H, br s), 7.25-7.69 (7 H, m), 6.44-6.82 (2 H, m), 5.99 ( 1 H, m), 5.13-5.48 (2 H, m) and 3.95 (2 H, m); 6c 199.14 (q), 151.42 (q), 140.32 (q), 135.25, 134.69, 134.09, 130.53, 128.78, 127.80, 117.23 (q), 116.02, 113.76, 11 1.68 and 44.97; mi-237 (M', 100"4J), 236 (36), 167 (18), 132 (36), 105 (30), 91 (15) and 77 (45). 3.85 (2 H, m) and 2.39 (3 H, s); 6c 155.04 (q), 143.41 (q), 139.95 (q), 135.17, 132.04 (q), 129.98, 124. 33, 118.51, 117.34, 116.57, 115.83, 111.70, 45.87 and 20.43; m / z 239 (M+, loo%), 183 (29), 132 (16), 131 (33), 130 (23), 120 (39, 105 (25) This material was not further purified, but was dissolved in methanol (20 cm3), and reduced to the N-benzyl compound by treatment with solid sodium borohydride l o (1.0 g, 25 mmol).…”