stigmasterol has been researched along with homocastasterone* in 2 studies
2 other study(ies) available for stigmasterol and homocastasterone
| Article | Year |
|---|---|
Synthesis and bioactivity of C-29 brassinosteroid analogues with different functional groups at C-6.
In this paper, we report the synthesis and bioactivity of four synthetic analogues of 28-homobrassinosteroids, in order to evaluate the influence in bioactivity when the C-6 keto group is replaced by different functional groups. The synthetic analogues are 6-deoxo-28-homocastasterone [(22R,23R)-stigmasta-2alpha,3alpha,22,23-tetraol], 6alpha-hydroxy-28-homocastasterone [(22R,23R)-stigmasta-2alpha,3alpha,6alpha,22,23-pentaol], 6beta-hydroxy-28-homocastasterone [(22R,23R)-stigmasta-2alpha,3alpha,6beta,22,23-pentaol], and [(22R,23R)-6alpha-fluorostigmasta-2alpha,3alpha,22,23-tetraol]. Results indicate that replacement of the 6-keto moiety by an beta or alpha hydroxyl group led to a decrease in activity, whereas the 6-deoxo analogue showed a very low activity, confirming the importance of an electronegative moiety at C-6 to observe hormonal potency. The 6alpha-fluorinated analogue elicited a low activity, similar to that of the 6-deoxo analogue. Topics: Cholestanones; Models, Molecular; Molecular Conformation; Oryza; Plant Growth Regulators; Seedlings; Stigmasterol | 2005 |
Synthesis of new brassinosteroids with potential activity as antiecdysteroids.
The synthesis of four new brassinosteroids with 2 beta,3 beta-diol functionality and A/B cis and A/B trans ring junction is reported. These brassinosteroids could present activity as antiecdysteroids. Topics: Acetic Anhydrides; Cholestanones; Ecdysteroids; Fluoroacetates; Invertebrate Hormones; Molecular Structure; Stereoisomerism; Steroids; Stigmasterol | 1994 |