An expeditious synthesis of optically pure 1,4,5,6-tetrahydro-as-triazines, fused to the carbohydrate skeleton

Chemistry Letters

Volumn , Issue 7, 2001, Pages 660-661

  Saeed, Muhammad ^a   Abdel Jalil, Raid J ^a   Voelter, Wolfgang ^a   El Abadelah, Mustafa M ^a  

^a UNIVERSITY OF TÜBINGEN   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0035634154     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2001.660     Document Type: Article

References (19)

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18. 3) data of 5a: δ (ppm) 7.40-7.44 (2H, m, PhH), 7.26-7.32 (7H, m, PhH), 6.90 (1H, m, PhH), 5.54 (1H, s, NH), 4.88 (1H, d, J = 11.5 Hz, PhCHH), 4.59 (1H, d, J= 11.5 Hz, PhCHH), 4.42 (1H, d, J= 7.77 Hz, H-1), 3.84 (1H, dd, J = 3.35 and 9.7 Hz, H-3), 4.07 (1H, dd, J = 1.5 and 13.13 Hz, H-5), 3.76 (1H, dd, J = 1.5 and 13.13 Hz, H-5′), 3.55 (1H, dd, J = 7.9 and 9.7 Hz, H-2), 3.43 (1H, brs, H-4), 2.5 (3H, s, OMe); 5b: 7.33 (7H, m, PhH), 6.86 (2H, m, PhH), 5.50 (1H, s, NH), 5.29 (3H, s, OMe), 4.90 (1H, d, J = 11.6 Hz, PhCHH), 4.62 (1H, d, J = 11.6 Hz, PhCHW), 4.41 (1H, d, J = 9.7 Hz, H-1), 4.08 (1H, d, J = 12.8 Hz, H-5), 3.77 (3H, m, H-2, H-3, H-5′), 2.5 (3H, s, OMe); 5c: 7.25-7.37 (2H, m, PhH), 7.29 (5H, m, PhH), 6.98 (2H, m, PhW), 5.55 (1H, s, NH), 4.87 (1H, d, J = 11.6 Hz, PhCHH), 4.57 (1H, d, J = 11.6 Hz, PhCHH), 4.40 (1H, d, J = 7.63 Hz, H-1), 4.22 (1H, dd, J = 3.36 and 9.76 Hz, H-3), 4.06 (1H, dd, J = 1.53 and 13.12Hz, H-5), 3.75 (1H, dd, 7= 1.53 and 13.12 Hz, H-5′), 3.52 (1H, dd, J = 7.63 and 9.76 Hz, H-2), 3.42 (1H, m, H-4), 2.5 (3H, s, OMe); 5d: 7.42-7.43 (2H, m, PhH), 7.13-7.42 (5H, m, PhH), 6.83-6.86 (2H, m, PhH), 5.73 (1H, s, NH), 4.81 (1H, d, J = 11.3 Hz, PhCHH), 4.50 (1H, d, J = 11.3 Hz, PhCHH), 4.37 (1H, d, J = 7.94 Hz, H-1), 4.24 (1H, dd, J = 2.74 and 9.76 Hz, H-3), 4.02 (1H, d, J = 13.12 Hz, H-5), 3.69 (1H, d, 13.12 Hz, H-5′), 3.54 (2H, m, H-2, H-4), 2.5 (3H, s, OMe).
19. 3).