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H. Nmrm and 7. Pp-ch, 71 (br. s, 1H, N1eCH 2a ), 3.01e3 6-H, N1eCH 2e ), 3.60e3.64 (m, 4H, Pp-3, 5-H), 3.66 (s, 3H, OCH 3 ), 3.73e3, 1H, CH), 4.33 (s, 2H, N3eCH 2 ), 6.82 (t, J ¼ 6.18 Hz, pp.1-83

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