✦ LIBER ✦
Tetracyclic triterpenoids from melia azedarach, L. : II. 2-Oxa-trans-bicyclo[3,3,0]-octanones
✍ Scribed by Frederic C. Chang; Chao-kuo Chiang
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- French
- Weight
- 257 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
A new euphane-type (208-H) hydroxy ketone isolated from the bark of Melia azedarach, L. and given the name, kulinone, was shown recently to be 16-hydroxybutyrospennone, with tentative assignment of the B configuration to the hydroxy group (1). The present paper is a report of the isolation of two companions of kulinone, herewith named kulactone, la, and kulolactone, 2a, and of their characterization as compounds of the novel 2oxa-trans-bicyclo[3,3,0]-octan-3-one system.