(5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10⁽¹⁹⁾-triene

Base Information

• Chemical Name: (5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10⁽¹⁹⁾-triene
• CAS No.: 933779-95-4
• Molecular Formula: C₅₄H₁₀₆O₅Si₄
• Molecular Weight: 947.775

Synonyms:(5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10⁽¹⁹⁾-triene

Chemical Property of (5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10⁽¹⁹⁾-triene

Chemical Property:

• Boiling Point: 765.6±60.0 °C(Predicted)
• Density: 0.94±0.1 g/cm3(Predicted)

Purity/Quality:

98%＋ ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10⁽¹⁹⁾-triene

There total 1 articles about (5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10⁽¹⁹⁾-triene 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: 26.0%

(4E)-(1R,3aR,7aR)-1-[(2R)-6-(triethylsilyloxy)-6-methylheptan-2-yl]-4-bromomethylene-7a-methyloctahydro-1H-indene + (4R,5S,6R)-4,6-di(tertbutyldimethylsilyloxy)-5-[3-(t-butyldimethylsilyloxy)propoxy]-7-octen-2-yne (239100-35-7) → (5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10(19)-triene (933779-95-4)

Guidance literature:

With triethylamine; tris(dibenzylideneacetone)dipalladium⁽⁰⁾ chloroform complex; triphenylphosphine; In toluene; for 4.5h; Heating;

Reference yield: 60.0%

(5Z,7E)-(1R,2R,3R)-1,3-bis(tert-butyldimethylsilyloxy)-2-(3-tert-butyldimethylsilyloxypropoxy)-25-triethylsilyloxy-9,10-secocholesta-5,7,10(19)-triene (933779-95-4) → Eldecalcitol (104121-92-8)

Guidance literature:

With tetrabutyl ammonium fluoride; In tetrahydrofuran; toluene; at 105 ℃; for 2h;

upstream raw materials:

(4R,5S,6R)-4,6-di(tertbutyldimethylsilyloxy)-5-[3-(t-butyldimethylsilyloxy)propoxy]-7-octen-2-yne

Downstream raw materials:

Eldecalcitol

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