(2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

Base Information

Chemical Name:(2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol
CAS No.:113643-41-7
Molecular Formula:C₃₃H₄₈O₇
Molecular Weight:556.74
Hs Code.:

Synonyms:(2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

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Chemical Property of (2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

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Technology Process of (2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

There total 19 articles about (2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-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: 87.0%

: 917-54-4
methyllithium

: 113981-32-1
(4R,5R)-1-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-4,6-isopropylidenedioxy-5-(4-methoxybenzyloxy)hexan-1-one

: 113643-41-7
(2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

Guidance literature:: In diethyl ether; at -93 ℃;
DOI:10.1016/S0040-4039(00)95485-6

Reference yield:

: 113643-40-6
<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran>-2-methanol

: 113643-41-7
(2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

Guidance literature:: Multi-step reaction with 5 steps

1: CrO₃, H₂SO₄ / acetone / 0 °C

3: n-BuLi / tetrahydrofuran / -93 °C

4: 1.) NaH; 2.) H₂ / 2.) Pd-C / 1.) DMSO-THF, 0 deg C; 2.) AcOEt

5: 87 percent / diethyl ether / -93 °C

With chromium(VI) oxide; n-butyllithium; sulfuric acid; hydrogen; sodium hydride; palladium on activated charcoal; In tetrahydrofuran; diethyl ether; acetone;
DOI:10.1016/S0040-4039(00)95485-6

Reference yield:

: (2R,5R,6S)-5-Benzyloxy-5-ethyl-6-methyl-tetrahydro-pyran-2-carboxylic acid

: 113643-41-7
(2S,5R,6R)-2-<(2R,5R,6S)-5-benzyloxy-5-ethyl-6-methyltetrahydropyran-2-yl>-5,7-isopropylidenedioxy-6-(4-methoxybenzyloxy)heptan-2-ol

Guidance literature:: Multi-step reaction with 4 steps

2: n-BuLi / tetrahydrofuran / -93 °C

3: 1.) NaH; 2.) H₂ / 2.) Pd-C / 1.) DMSO-THF, 0 deg C; 2.) AcOEt

4: 87 percent / diethyl ether / -93 °C

With n-butyllithium; hydrogen; sodium hydride; palladium on activated charcoal; In tetrahydrofuran; diethyl ether;
DOI:10.1016/S0040-4039(00)95485-6