The total synthesis of 7′,8′‐dihydro‐γ‐carotene (β‐zeacarotene) has been accomplished by a WITTIG reaction of 15,15′‐dehydro‐apo‐12′‐carotenal(C~35~) with farnesyltriphenyl‐phosphonium bromide.
✦ LIBER ✦
Synthesen in der Polymyxin-Reihe. 7. Mitteilung. Synthese des hochaktiven cyclischen Decapeptids 7α
✍ Scribed by R. O. Studer; W. Lergier; K. Vogler
- Publisher
- John Wiley and Sons
- Year
- 1963
- Tongue
- German
- Weight
- 411 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The synthesis of an antibiotic substance to which we assign the structure 7α, one of the four possible formulas proposed for natural polymyxin B~1~, is reported. Although both synthetic and the natural product have the same antimicrobial activity towards Brucella bronchiseptica in vitro (plate test), they are not identical, as shown by the lower optical rotation of the synthetic material.
📜 SIMILAR VOLUMES
Synthesen in der Carotinoid-Reihe. 18. M
✍
R. Rüegg; U. Schwieter; G. Ryser; P. Schudel; O. Isler
📂
Article
📅
1961
🏛
John Wiley and Sons
🌐
German
⚖ 304 KB
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