da Silva AJM, Buarque CD, Brito FV, Aurelian L, Macedo LF, Malkas LH, Hickey RJ, Lopes DVS, Noël F, Murakami YLB, Silva NMV, Melo PA, Caruso RRB, Castro NG, Costa PRR. Synthesis and preliminary pharmacological evaluation of new (+/-) 1,4-naphthoquinones structurally related to lapachol.
Bioorg Med Chem 2002;
10:2731-8. [PMID:
12057662 DOI:
10.1016/s0968-0896(02)00100-1]
[Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Seven new 1,4-naphthoquinones structurally related to lapachol were synthesized from lawsone and oxygenated arylmercurials. These compounds can also be seen as pterocarpan derivatives where the A-ring was substituted by the 1,4-naphthoquinone nucleus. Pharmacological screening provided evidence of significant biological activities, including effects against proliferation of the MCF-7 human breast cancer cell line, against Herpes Simplex Virus type 2 infection, and against snake poison-induced myotoxicity. One derivative displaced flunitrazepam binding and showed benzodiazepine-like activity, suggesting novel neuroactive structural motifs.
Collapse