We have isolated seven gibberellin glucosides (1, 2) from immature seeds of morning-glory (Pharbitis nil) and elucidated the structures of six of them - (3). Now we wish to report the structure of a new gibberellin glucoside, tentatively termed F-VII.
Structures of new gibberellins in immature seeds of canavalia gladiata
โ Scribed by Nobutaka Takahashi; Noboru Murofushi; Tokao Yokota; Saburo Tamura; Jiro Kato; Yoshitaka Shiotani
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- French
- Weight
- 223 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Isolation and biological aotivlties of two novel gibberellins, Canavalla gibberellln-I and -11 (CG-I, CG-II) contained in Immature seeds of sword bean (Canavalia aladiata DC.) have been already reported (1). In this paper we wish to report the determination of their structures.
๐ SIMILAR VOLUMES
Two new gibberellins, Canavalia gibberellin-I (CG-I) and Canavalia gibberellin-II (CG-II), were isolated from immature seeds of sword bean, Canavalia gladiata DC. The molecular formulas C19t{2207 and C19H2~O6, were assigned to CG-I and CG-II, respectively, on the basis of high resolution mass, infra
Isolation and. biological activities of new gibberellins A26 and A27 in immature seeds of the Japanese morning-glory (Pharbitis nil) have been reported - (1). We wish to report here the elucidation of their structures. Gibberellin A26 (GA26), m.p. 254-257", formed a monomethyl ester (II), m.p. 207
The presence of glbberellln-like substances in immature seeds of morning-glory (Pharbltis a) has been suggested by Ogawa ! (1,2), Murakami (3) and Zeevaat (4). Now we wish to report the Isolation and structure of a new gibberellln, tentatively named Pharbltis Gibberellln, as well as the presence o
On the treatment with acetic anhydride-pyridine at room temparature the four glucosldes gave the ccrresponding acetates. Chemical shifts in the NMR spectra of the glucosides and their acetates are summarized in Table. Esterification of a crystalline F-II tetraacetate (II), Cj~H40015H20\*\*, m.p. 20
Extracts of immature seeds of Lupinus found to possess biological activities luteus have been similar to the gibberellins (l-4). It was suggested from the chromatographic behavior and the characteristics of infrared spectra that the active principles were different from Cl9 gibberellins (5). We wish