Synthesis and cytotoxicity of a novel iridoid glucoside derived from aucubin.
The novel iridoid glycoside 2 was prepared in six steps (15% overall yield) from natural aucubin (1) and fully characterized. Compound 2, which comprises the same conjugated cyclopentenone pharmacophore as known antitumor oxylipins and prostaglandins, displayed significant antiproliferative in vitro activity towards leukemia L1210 cells. The Michael addition of nucleophilic thiols to compound 2 occurred on a different position compared to classical delta7-prostaglandin A1 methyl ester. The resulting adducts 7a and 7b were fully characterized, and their MS fragmentation patterns were elucidated.
Mouriès
Christine
C
Laboratoire de Pharmacognosie de l'Université René Descartes, U.M.R./C.N.R.S. no8638, Faculté des Sciences Pharmaceutiques et Biologiques, 4, Avenue de l'Observatoire, F-75006 Paris.
Rakotondramasy
Vokatsoa C
VC
Libot
Francine
F
Koch
Michel
M
Tillequin
François
F
Deguin
Brigitte
B
D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D045744:Cell Line, Tumor; D004305:Dose-Response Relationship, Drug; D005960:Glucosides / Q000737:chemistry*; D057888:Iridoid Glucosides; D039823:Iridoids / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D051379:Mice; D015394:Molecular Structure
D000970:Antineoplastic Agents; D005960:Glucosides; D057888:Iridoid Glucosides; D039823:Iridoids; C006650:aucubin