A new method for the formation of the imidazo[4',5';3,4]pyrido[2,3-b]indole ring: Formal synthesis of the alkaloids from marine origin grossularines -1 and 2

Tetrahedron Letters

Volumn 38, Issue 39, 1997, Pages 6909-6912

  Molina, Pedro ^a   Fresneda, Pilar M ^a   Sanz, Miguel A ^a  

^a UNIVERSITY OF MURCIA   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

ALKALOID; CARBOLINE DERIVATIVE; GROSSULARINE 1; GROSSULARINE 2; UNCLASSIFIED DRUG;

ARTICLE; CYCLIZATION; DRUG SYNTHESIS; REACTION ANALYSIS;

EID: 0030751339     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)01592-X     Document Type: Article

References (22)

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20. tBu), 187.4 (CO). IR (nujol) ν : 3268 (m), 1733 (s), 1620 (s).
21. 2O), 99.4 (q), 109.9 (C-7), 116.0 (q), 119.8 (C-9), 120.7 (C-10), 121.0 (q), 121.9 (q), 122.9 (C-8), 136.9 (q), 148.2 (q), 151.5 (q), 154.6 (q). IR (nujol) ν : 3344(m), 1684(m), 1597(s). MS: m/z(%) (FAB positive, NBA) 312 (M+H, 100); (EI posi live) 312 (M+1, 23), 311 (M, 100), 280 (49), 266 (22).
22. Molina, P.; Tarraga, A. Comprehensive Organic Functional Group Transformations ; Katritzky, A. R.; Meth-Cohn, O.; Rees, C. W. Ed.; Vol. 5; Moody, C. J., vol. Ed.; Pergamon : Cambridge, 1995; p 976.