(2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran

Base Information

• Chemical Name: (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran
• CAS No.: 438625-82-2
• Molecular Formula: C₄₄H₇₂O₇Si₂
• Molecular Weight: 769.222
• Mol file: 438625-82-2.mol

Synonyms:(2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran

Chemical Property of (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran

There total 5 articles about (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran 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:

tert-butyldimethylsilyl chloride (18162-48-6) + (2R,4S,5R,6R)-6-(4-Benzyloxy-butyl)-2-[(S)-benzyloxy-((2R,3S,4S)-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran-2-yl)-methyl]-2-methoxy-5-methyl-tetrahydro-pyran-4-ol → (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran (438625-82-2)

Guidance literature:

With potassium hexamethylsilazane; In tetrahydrofuran; at -78 ℃;

DOI:10.1021/ja0262683

Reference yield:

(2S,3R)-7-Benzyloxy-2-methyl-3-triethylsilanyloxy-heptanal (334968-76-2) → (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran (438625-82-2)

Guidance literature:

Multi-step reaction with 4 steps

1: 93 percent / Cy₂BCl; Et₃N / pentane

2: 72 percent / PPTS / CH₂Cl₂

3: imidazole / CH₂Cl₂

4: KN(SiMe₃)2 / tetrahydrofuran / -78 °C

With 1H-imidazole; dicyclohexylboron chloride; pyridinium p-toluenesulfonate; potassium hexamethylsilazane; triethylamine; In tetrahydrofuran; dichloromethane; pentane;

DOI:10.1021/ja0262683

Reference yield:

(S)-1-Benzyloxy-1-((2R,3S,4S)-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran-2-yl)-propan-2-one → (2R,3S,4S)-2-{(S)-Benzyloxy-[(2R,4S,5S,6R)-6-(4-benzyloxy-butyl)-4-(tert-butyl-dimethyl-silanyloxy)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran (438625-82-2)

Guidance literature:

Multi-step reaction with 4 steps

1: 93 percent / Cy₂BCl; Et₃N / pentane

2: 72 percent / PPTS / CH₂Cl₂

3: imidazole / CH₂Cl₂

4: KN(SiMe₃)2 / tetrahydrofuran / -78 °C

With 1H-imidazole; dicyclohexylboron chloride; pyridinium p-toluenesulfonate; potassium hexamethylsilazane; triethylamine; In tetrahydrofuran; dichloromethane; pentane;

DOI:10.1021/ja0262683

upstream raw materials:

tert-butyldimethylsilyl chloride

(2S,3R)-7-Benzyloxy-2-methyl-3-triethylsilanyloxy-heptanal

(2R,3R,4S)-2-{(S)-Benzyloxy-[(2R,4S,5R,6R)-6-(4-benzyloxy-butyl)-4-hydroxy-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-methyl}-3-methyl-3,4-dihydro-2H-pyran-4-ol

(1S,4S,5R,6R)-1,10-Bis-benzyloxy-4-hydroxy-5-methyl-1-((2R,3S,4S)-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran-2-yl)-6-triethylsilanyloxy-decan-2-one

Downstream raw materials:

Toluene-4-sulfonic acid 4-{(2R,3S,4S,6R)-4-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-3-methyl-6-[(S)-((2R,3S,4S)-3-methyl-4-triethylsilanyloxy-3,4-dihydro-2H-pyran-2-yl)-triethylsilanyloxy-methyl]-tetrahydro-pyran-2-yl}-butyl ester