## Abstract 3β__O__βBenzylβprotected quinovose 6 was transformed into 1,2β__O__βunprotected derivative 9 which on treatment with TBSβCl in the presence of a base gave selectively 2β__O__βunprotected glycosyl acceptor 10. Similarly, 3β__O__βallylβprotected quinovose 11 was transformed into 1,2β__O__
On the structure of calonyctin A, a plant growth regulator
β Scribed by Yiwei Fang; Wengang Chai; Suming Chen; Yuzhen He; Lu Zhao; Jianhe Peng; Haiwang Huang; Bin Xin
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 696 KB
- Volume
- 245
- Category
- Article
- ISSN
- 0008-6215
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Radiclonic acid, isolated from the mycelial extracts of an unidentified fungus 489-7 as a root growth-promoter, is a hydroxydienoic acid: In the present paper, structure I is assigned to 2 radiclonic acid. Radiclonic acid, C23H4C05, gave a dimethyl ester(II);UV hz$l:250 (B 9900), 232(C 9600) nm, IR
Calonyctin A2, a tetrasaccharidic glycolipid having a 22-membered macrolidic structure, has been synthesized by the assembly of three 6-deoxygenated thioglycoside intermediates. The short-step synthesis was achieved by preparation of the most complicated b-c disaccharide unit from phenyl 2,2 :4,6:4