102976-85-2

Upstream product

• 81918-44-7 Acetic acid (3S,9R,10R,13R,14S,17S)-14-hydroxy-17-[(R)-5-(3-hydroxy-3-methyl-butyl)-2,2,4-trimethyl-[1,3]dioxolan-4-yl]-10,13-dimethyl-6-oxo-2,3,4,5,6,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 
• 142735-52-2 5β-2-deoxy-20-hydroxyecdysone 20,22-acetonide 
• 128529-85-1 2-Deoxy-20-hydroxyecdysone-22-benzoate 
• 102942-07-4 (20R,22R)-3β-((tert-butyldimethylsilyl)oxy)-14α,20-dihydroxy-6-oxo-25-homo-5ε-chol-7-ene 25,22-lactone 
• 105308-14-3 (20R)-3β-((tert-butyldimethylsilyl)oxy)-14α-hydroxy-6,22-dioxo-25-homo-5ε-chola-7,23-diene 25,20-lactone 
• 102942-01-8 (20R)-3β-((tert-butyldimethylsilyl)oxy)-20-(2-furyl)-14α,20-dihydroxy-5ε-pregn-7-en-6-one 
• 102941-96-8 20-acetoxy-3β-((tert-butyldimethylsilyl)oxy)-14α-hydroxy-5α-pregn-7-en-6-one 
• 102941-91-3 3β,20-bis((tetrahydropyran-2-yl)oxy)-5α-pregnan-6-one 
• 102941-94-6 3β,20-diacetoxy-14α-hydroxy-5α-pregn-7-en-6-one 
• 102976-64-7 3β,20-bis((tetrahydropyran-2-yl)oxy)-5-pregnene 
• 102941-92-4 7α-bromo-3β,20-diacetoxy-5α-pregnan-6-one 
• 105307-29-7 3β-((tert-butyldimethylsilyl)oxy)-14α-hydroxy-5ε-pregn-7-ene-6,20-dione 
• 102941-93-5 3β,20-diacetoxy-5α-pregn-7-en-6-one 
• 105307-28-6 3β-((tert-butyldimethylsilyl)oxy)-14α,20-dihydroxy-5ε-pregn-7-en-6-one 

Relevant academic research and scientific papers

Phytoecdysteroids of plants of the Silene genus and the dynamics of their accumulation

The ecdysteroids of four species of the genus Silene L. have been studied. Six ecdysteroids have been isolated and identified, and the dynamics of the accumulation of the ecdysteroids in relation to the phases of development of the plants have been determined.

Stereocontrolled Synthesis of 2-Deoxycrustecdysone and Related Compounds

The synthesis of 2-deoxycrustecdysone has been accomplished from pregnenolone.The key reaction is based on succesful stereochemical control at C-20 and C-22 involving the stereoselective reduction of lactone 23, derived from 20-oxosteroid 20 and 2-lithiofuran, to give γ-butyrolactone 25 having a(20R,22R)-20,22-diol functionality. 5-Epi-2-deoxymakisterone A, 5,24-epi-2-deoxymakisterone A, and 24-epi-2-deoxymakisterone A were also synthesized by application of the same sequence.

Phytoecdysteroids of plants of the Silene genus. 2-Deoxyecdysterone-25-acetate from Silene wallichiana

The new ecdysteroid 2-deoxyecdysterone-25-acetate was isolated from roots of Silene wallichiana Klotzsch.

Phytoecdysteroids of plants of the Silene genus. 2-dehydroxyecdysterone-3-O-benzoate from Silene wallichiana

The known ecdysteroids 2-dehydroxyecdysone, 2-dehydroxyecdysterone, ecdysterone-22-O-benzoate, ecdysterone, integristerone A, and a new ecdysteroid identified as 2-dehydroxyecdysterone-3-O-benzoate are isolated from roots of Silene wallichiana Klotzsch.

Synthesis and biological activity of 2-deoxy-20-hydroxyecdysone and derivatives

The naturally occurring ecdysteroids 2-deoxy-20-hydroxyecdysone (2-D-20-ECD, 2-deoxycrustecdysone), 2-D-20-ECD 3-acetate (2-deoxyecdysterone 3-acetate), 2-D-20-ECD 22-acetate and 2-D-20-ECD 22-benzoate have been partially synthesized from 20-hydroxyecdysone. Moulting hormone activity of these ecdysteroids has been studied using the Musca bioassay.