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|Title:||Chemical constituents of Avicennia alba. Isolation and structural elucidation of new naphthoquinones and their analogues|
|Citation:||Ito, C.,Katsuno, S.,Kondo, Y.,Tan, H.T.-W.,Furukawa, H. (2000-03). Chemical constituents of Avicennia alba. Isolation and structural elucidation of new naphthoquinones and their analogues. Chemical and Pharmaceutical Bulletin 48 (3) : 339-343. ScholarBank@NUS Repository.|
|Abstract:||Three new naphthoquinones and their analogues, named avicequinone-A (1), -B (2), -C (3), and avicenol-A (4), -B (5), -C (6), respectively, were isolated from the stem hark of Avicennia alba (Avicenniaceae) collected in Singapore, and their structures were elucidated by means of spectral methods. Gillan and co-workers have proposed that the structures of the new phytoalexins isolated from Avicennia marina are 1,2-naphthoquinones 8 and 9. Our synthetic and spectrometric studies showed that these structures should be revised respectively to 1,4-naphthoquinones 2 and 3, named avicequinone-B and -C by us.|
|Source Title:||Chemical and Pharmaceutical Bulletin|
|Appears in Collections:||Staff Publications|
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