Abstract:
:The first seco-uleine alkaloids, manilamine (1) (18-hydroxy-19,20-dehydro-7,21-seco-uleine) and N4-methyl angustilobine B (2), were isolated from the (pH 5) alkaloid extract of Philippine Alstonia scholaris leaves together with the known indole alkaloids 19,20-(E)-vallesamine (3), angustilobine B N4-oxide (4), 20(S)-tubotaiwine (5), and 6,7-seco-angustilobine B (6). The structure of the alkaloids was established from MS and NMR experiments.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Macabeo AP,Krohn K,Gehle D,Read RW,Brophy JJ,Cordell GA,Franzblau SG,Aguinaldo AMdoi
10.1016/j.phytochem.2005.02.018subject
Has Abstractpub_date
2005-05-01 00:00:00pages
1158-62issue
10eissn
0031-9422issn
1873-3700pii
S0031-9422(05)00082-8journal_volume
66pub_type
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