(3S*,16S*,20R*,22R*,24S*)-3,22,25-Trihydroxy-16,24:20,24-diepoxycholest-5-en-3-yl acetate methanol solvate

(2α,3α,5α,20S,22S)-2,3,5,14,20,20,24-Hep

(2α,3α,5α,20S,22S)-2,3,5,14,20,20,24-Heptahydroxycholest-7-en-6-one monohydrate

✍ Pan, Yuan-Jiang ;Zhou, Hui ;Shi, Hao ;Lv, Shu-Ming ;Jin, Zhi-Ming 📂 Article 📅 2001 🏛 International Union of Crystallography 🌐 English ⚖ 503 KB

Stereoselective synthesis of (22R, 23R,

Stereoselective synthesis of (22R, 23R, 24S)-3β-hydroxy-5-ene-22,23-dihydroxy-24-methyl-cholestane: A brassinolide intermediate from 16-dehydropregnenolone acetate.

✍ Braja G. Hazra; Padmakar L. Joshi; Bharat B. Bahule; Narshinha P. Argade; Vandan 📂 Article 📅 1994 🏛 Elsevier Science 🌐 French ⚖ 760 KB

## Abstnzck: A new synthesis of the important aldehyde I torn easily available l&Dehydropregnenolone acetate (I6-DPA) in high yield is described. The aidehyde I ip converted to trio1 24, involving a stereaselective generation of all the four chiral centers in the brassinolide side chain. The importa

(5R,6S,8S,9R,14R,15R,17R,18S,21S,24R,26S

(5R,6S,8S,9R,14R,15R,17R,18S,21S,24R,26S,27R)-5α-Chloro-16,24-cyclo-13,14-secoergost-2-ene-18,26-dioic acid-14:17,14:27-diepoxy-6β,13,20,22-tetrahydroxy-1,15-dioxo-γ-lactone δ-lactone methanol solvate monohydrate

✍ Choudhary, M. Iqbal ;Yousuf, Sammer ;Atta-ur-Rahman, ;Anjum, Shazia ;Fun, Hoong 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 308 KB

The title compound, C 28 H 27 O 10 ClÁCH 3 OHÁH 2 O, was isolated from Physalis minima. The rigid molecule consists of eight fused rings involving three lactones. The spiro-fused -lactone rings are in half-chair and envelope conformations. The spirofused -lactone rings are fused to a cyclohexene rin

(5R,6S,8S,9R,14R,15R,17R,18S,21S,24R,26S

(5R,6S,8S,9R,14R,15R,17R,18S,21S,24R,26S,27R)-5α-Chloro-16,24-cyclo-13,14-secoergost-2-ene-18,26-dioic acid-14:17,14:27-diepoxy-6β,13,20,22-tetrahydroxy-1,15-dioxo-γ-lactone δ-lactone methanol solvate monohydrate. Corrigendum

✍ Choudhary, M. Iqbal ;Yousuf, Sammer ;Atta-ur-Rahman, ;Anjum, Shazia ;Fun, Hoong 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 36 KB

[μ-rel-(3R,6S)-10,22-Dichloro-3,6-dimeth

[μ-rel-(3R,6S)-10,22-Dichloro-3,6-dimethyl-3,6,14,18-tetraazatricyclo[18.3.1.18,12]pentacosa-1(24),8,10,12(25),13,18,20,22-octane-24,25-diolato-κ4N3,N6,O24,O25:κ4N14,N18,O24,O25]dicopper(II) perchlorate

✍ Liu, Huan ;Li, Yi-Zhi ;Hu, Dan ;Pan, Zhi-Quan ;Hu, Xue-Lei 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 124 KB

Stereoselective Synthesis of (2R,3S,22R,

Stereoselective Synthesis of (2R,3S,22R,23E) -6,6-Ethylenedioxy-22-hydroxy-2,3-isopropylidenedioxy-24-methyl-5α -cholest-23-ene (IX): An Intermediate for the Synthesis of Castasterone, Dolichosterone and Brassinolide.

✍ Braja G. Hazra; Tirunahari Pavan Kumar; Vandana S. Pore 📂 Article 📅 2005 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

(3S*,16S*,20R*,22R*,24S*)-3,22,25-Trihydr­oxy-16,24:20,24-diepoxy­cholest-5-en-3-yl acetate methanol solvate

(3S,16S,20R,22R,24S*)-3,22,25-Trihydroxy-16,24:20,24-diepoxycholest-5-en-3-yl acetate methanol solvate