Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester

Base Information

• Chemical Name: Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester
• CAS No.: 2891-78-3
• Molecular Formula: C₃₀H₄₄O₅S
• Molecular Weight: 516.742

Synonyms:

Chemical Property of Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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Useful:

Technology Process of Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester

There total 2 articles about Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

(3S,8S,9S,10R,13S,14S,17S)-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)-2,3,4,7, 8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate (40148-10-5) → Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester (2891-78-3)

Guidance literature:

Multi-step reaction with 2 steps

1: LiAlH₄, AlCl₃ / diethyl ether; tetrahydrofuran

2: Py

With pyridine; lithium aluminium tetrahydride; aluminium trichloride; In tetrahydrofuran; diethyl ether;

DOI:10.1016/0039-128X(65)90154-6

Reference yield:

p-toluenesulfonyl chloride (98-59-9) + (3S,8S,9S,10R,13S,14S,17S)-17-[(R)-1-(2-Hydroxy-ethoxy)-ethyl]-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol (1818-91-3) → Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester (2891-78-3)

Guidance literature:

With pyridine;

DOI:10.1016/0039-128X(65)90154-6

Reference yield:

Toluene-4-sulfonic acid 2-[(R)-1-((3S,8S,9S,10R,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester (2891-78-3) → Toluene-4-sulfonic acid 2-[(R)-1-((8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3,6-dioxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethoxy]-ethyl ester

Guidance literature:

With chromium(VI) oxide; sulfuric acid; In acetone;

DOI:10.1016/0039-128X(65)90154-6

upstream raw materials:

p-toluenesulfonyl chloride

(3S,8S,9S,10R,13S,14S,17S)-17-[(R)-1-(2-Hydroxy-ethoxy)-ethyl]-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

(3S,8S,9S,10R,13S,14S,17S)-10,13-dimethyl-17-(2-methyl-1,3-dioxolan-2-yl)-2,3,4,7, 8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate

Downstream raw materials:

Acetic acid (3S,8S,9S,10R,13S,14S,17S)-10,13-dimethyl-17-{(R)-1-[2-(toluene-4-sulfonyloxy)-ethoxy]-ethyl}-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

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