Synthesis of macrocyclic terpenoids by intramolecular cyclization IX. Total synthesis of (±)-obscuronatin and (±)-biflora-4,10(19),15-triene.
✍ Scribed by Mitsuaki Kodama; Kunihito Okumura; Yoshihisa Kobayashi; Tetsuto Tsunoda; Shô Itô
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 218 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
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📜 SIMILAR VOLUMES
Stereoselectrve totol synthesis of (f)-cubitene, o diterpane isolated from termite soldiers, and its stereoisomer has been achieved util rzing the anion-induced intramolecular cyclization.
The methyl ester of f+)-ceriferic acid-I, a 14-membered ring sesterterpene isolated from the wax of the scale insect Ceroplastes ceriferus, was synthesized by means of an intramolecular Ylttig-type reaction.
Two 14-membered diterpenes, 3Z-cembrene A and cembrenene, isolated from a 1) 2) 3) 4) References and Notes M. Kodama, Y. Matsuki and S. lt8, Tetrahedron Letters 3065 (1975). -I
ln the previous paper (l), we have reported an efficient anion-induced intramolecular cyclizatian of the epoxy sulfide ,l\_ leading to the fourteen-membered ring compound ,2\_. We have extended our study starting from 2 to induce the other functionalities incorporated in the naturally occurring cemb