{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol

Base Information

• Chemical Name: {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol
• CAS No.: 203925-51-3
• Molecular Formula: C₂₉H₃₈O₇
• Molecular Weight: 498.617
• Mol file: 203925-51-3.mol

Synonyms:{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol

Chemical Property of {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol

There total 4 articles about {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol 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: 83.0%

{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-ylmethoxy}-tert-butyl-dimethyl-silane (203925-50-2) → {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol (203925-51-3)

Guidance literature:

With tetrabutyl ammonium fluoride;

DOI:10.1021/ja973287h

Reference yield:

(2R,3R,4R,4aR,6R,8aR)-4-Benzyloxy-2-(tert-butyl-dimethyl-silanyloxymethyl)-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-octahydro-pyrano[3,2-b]pyran-3-ol (194039-13-9) → {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol (203925-51-3)

Guidance literature:

Multi-step reaction with 3 steps

1: Dess-Martin periodinane, NaHCO₃ / CH₂Cl₂ / 2 h / Ambient temperature

2: toluene / 0.5 h / 90 °C

3: 83 percent / TBAF

With tetrabutyl ammonium fluoride; sodium hydrogencarbonate; Dess-Martin periodane; In dichloromethane; toluene;

DOI:10.1021/ja973287h

Reference yield:

(2R,3R,4R,4aR,6R,8aR)-4-Benzyloxy-2-hydroxymethyl-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-octahydro-pyrano[3,2-b]pyran-3-ol (203925-48-8) → {(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-methanol (203925-51-3)

Guidance literature:

Multi-step reaction with 4 steps

1: Et₃N / CH₂Cl₂

2: Dess-Martin periodinane, NaHCO₃ / CH₂Cl₂ / 2 h / Ambient temperature

3: toluene / 0.5 h / 90 °C

4: 83 percent / TBAF

With tetrabutyl ammonium fluoride; sodium hydrogencarbonate; Dess-Martin periodane; triethylamine; In dichloromethane; toluene;

DOI:10.1021/ja973287h

upstream raw materials:

{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-ylmethoxy}-tert-butyl-dimethyl-silane

(2R,3R,4R,4aR,6R,8aR)-4-Benzyloxy-2-hydroxymethyl-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-octahydro-pyrano[3,2-b]pyran-3-ol

(2R,3R,4R,4aR,6R,8aR)-4-Benzyloxy-2-(tert-butyl-dimethyl-silanyloxymethyl)-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-octahydro-pyrano[3,2-b]pyran-3-ol

(2R,4S,4aR,6R,8aR)-4-Benzyloxy-2-(tert-butyl-dimethyl-silanyloxymethyl)-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-hexahydro-pyrano[3,2-b]pyran-3-one

Downstream raw materials:

(S)-1-{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-3-((2S,3R,6S)-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl)-butan-1-one

(2R,4aR,6S,8R,8aR)-8-Benzyloxy-6-[(1S,3S)-1-benzyloxy-3-((2S,3R,6S)-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl)-butyl]-2-methoxy-2-[3-(4-methoxy-benzyloxy)-propyl]-7-methylene-octahydro-pyrano[3,2-b]pyran

(4-{(2S,4aR,6S,8R,8aR)-8-Benzyloxy-6-[(1S,3S)-1-benzyloxy-3-((2S,3R,6S)-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl)-butyl]-2-methoxy-7-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-2-oxo-butyl)-phosphonic acid dimethyl ester

(1S,3S)-1-{(2S,4R,4aR,6R,8aR)-4-Benzyloxy-6-methoxy-6-[3-(4-methoxy-benzyloxy)-propyl]-3-methylene-octahydro-pyrano[3,2-b]pyran-2-yl}-3-((2S,3R,6S)-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl)-butan-1-ol