Laurycolactone A 2 and B 3 are new quasslnolds with a C basic skeleton Isolated from the Vietnamese Simaroubaceae , Eurwoma ~ongifo~za Jack . T e structure of Eurycoma- da lactone, a Cl9 quasslnold isolated previously f&m-the same plant, has been revised and shown to be 4 The structures have been
Antileukaemic quassinoids : structure (X-ray analysis) of bruceine C and revised structure of bruceantinol
✍ Scribed by Judith Polonsky; Jeannette Varenne; Thierry Prangé; Claudine Pascard
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 262 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
Karinolide 1 is a structurally novel C20 quassinoid isolated from the French Guyanan Simaroubaceae, Simaba mZtifZara A.Juss. whose structure was established by X-ray diFfraction analysis. 6a-Senecioyloxychaparrin 1, the known 6cl-senecioloyxychaparrinone 3 and 9-methoxy-
Simarinolide 4a and Guanepolide 5a are new quassinoids with a C25 basic skeleton -isolated from a member of the French Guyanan Simaroubaceae, Simaba cf orinocensis H.B.K. The structure 4a was established by spectral means and that of 5a by X-ray diffraction --
Compounds of fourth-row nonmetals (As, Se, Br) generally resemble their homologs from the third row, whereas an increase in coordination number is often observed on going to the fifth row, e. g. SO:-, SeO:-, H,TeO$ Thus selenium oxide tetrafluoride, analogous to sulfur oxide tetrafluoride, should be