(2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol

Base Information

• Chemical Name: (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol
• CAS No.: 920034-27-1
• Molecular Formula: C₆₃H₉₇NO₁₀Si₃
• Molecular Weight: 1112.72

Synonyms:(2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol

Chemical Property of (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol

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Technology Process of (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol

There total 28 articles about (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol 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: 96.0%

4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)-2-methyloxazole (920034-26-0) + (4R,6R)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxy-tetrahydropyran-2-one (920034-25-9) → (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol (920034-27-1)

Guidance literature:

4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)-2-methyloxazole; With lithium diisopropyl amide; In tetrahydrofuran; hexane; at -78 ℃; for 0.416667h;

(4R,6R)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxy-tetrahydropyran-2-one; In tetrahydrofuran; hexane; at -78 ℃; for 0.666667h;

DOI:10.1021/ol062531j

Reference yield:

(2R,3R,4S,5R,6R,E)-2-(2-(tert-butyldimethylsilyloxy)ethyl)-3,5-dimethyl-6-(1-(2-methyloxazol-4-yl)prop-1-en-2-yl)-tetrahydro-2H-pyran-4-ol (920034-37-3) → (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol (920034-27-1)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium hydride / tetrahydrofuran / 15 h / Heating

1.2: 95 percent / tetrahydrofuran / 4.5 h / Heating

2.1: LDA / tetrahydrofuran; hexane / 0.42 h / -78 °C

2.2: 96 percent / tetrahydrofuran; hexane / 0.67 h / -78 °C

With sodium hydride; lithium diisopropyl amide; In tetrahydrofuran; hexane;

DOI:10.1021/ol062531j

Reference yield:

2-(2-hydroxy-ethyl)-3,5-dimethyl-6-[1-methyl-2-(2-methyl-oxazol-4-yl)-vinyl]-tetrahydro-pyran-4-ol (920034-38-4) → (2S,4R,6R)-2-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxytetrahydro-2H-pyran-2-ol (920034-27-1)

Guidance literature:

Multi-step reaction with 3 steps

1.1: 99 percent / N,N-diisopropylethylamine; 4-dimethylaminopyridine / CH₂Cl₂ / 12 h

2.1: sodium hydride / tetrahydrofuran / 15 h / Heating

2.2: 95 percent / tetrahydrofuran / 4.5 h / Heating

3.1: LDA / tetrahydrofuran; hexane / 0.42 h / -78 °C

3.2: 96 percent / tetrahydrofuran; hexane / 0.67 h / -78 °C

With dmap; sodium hydride; N-ethyl-N,N-diisopropylamine; lithium diisopropyl amide; In tetrahydrofuran; hexane; dichloromethane;

DOI:10.1021/ol062531j

upstream raw materials:

4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)-2-methyloxazole

(4R,6R)-6-((R,E)-2,2,7,10,10,11,11-heptamethyl-3,3-diphenyl-4,9-dioxa-3,10-disiladodec-6-en-5-yl)-4-methoxy-tetrahydropyran-2-one

2-(2-hydroxy-ethyl)-3,5-dimethyl-6-[1-methyl-2-(2-methyl-oxazol-4-yl)-vinyl]-tetrahydro-pyran-4-ol

(2R,3R,4S,5R,6R,E)-2-(2-(tert-butyldimethylsilyloxy)ethyl)-3,5-dimethyl-6-(1-(2-methyloxazol-4-yl)prop-1-en-2-yl)-tetrahydro-2H-pyran-4-ol

Downstream raw materials:

2-(((2S,4R,6R)-6-((1R,2E,4E,6R,8E)-9-bromo-1-(tert-butyldiphenylsilanyloxy)-6-methoxy-3-methylnona-2,4,8-trienyl)-2,4-dimethoxytetrahydro-2Hpyran-2-yl)methyl)-4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)prop-1-enyl)oxazole

2-((2R,3S,4S,5R,6R)-6-((E)-1-(2-(((2S,4R,6R)-6-((1R,2E,4E,6R,8E)-9-bromo-1-(tert-butyldiphenylsilanyloxy)-6-methoxy-3-methylnona-2,4,8-trienyl)-2,4-dimethoxytetrahydro-2H-pyran-2-yl)methyl)oxazol-4-yl)prop-1-en-2-yl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)ethanol

2-((2R,3S,4S,5R,6R)-6-((E)-1-(2-(((2S,4R,6R)-6-((1R,2E,4E,6R,8E)-9-bromo-1-(tert-butyldiphenylsilanyloxy)-6-methoxy-3-methylnona-2,4,8-trienyl)-2,4-dimethoxytetrahydro-2H-pyran-2-yl)methyl)oxazol-4-yl)prop-1-en-2-yl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2H-pyran-2-yl)acetaldehyde

(R,E)-4-((2R,4R,6S)-6-((4-((E)-2-((2R,3R,4S,5S,6R)-6-(2-(tert-butyldimethylsilanyloxy)ethyl)-4-(4-methoxybenzyloxy)-3,5-dimethyltetrahydro-2Hpyran-2-yl)prop-1-enyl)oxazol-2-yl)methyl)-4,6-dimethoxytetrahydro-2H-pyran-2-yl)-4-(tert-butyldiphenylsilanyloxy)-2-methylbut-2-enal

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