(2aR,3R,5S,5aR,6S,8aR,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

Base Information

Chemical Name:(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate
CAS No.:145745-86-4
Molecular Formula:C₃₃H₄₈O₉Si
Molecular Weight:616.824
Hs Code.:

(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

Synonyms:(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

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Chemical Property of (2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

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Technology Process of (2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

There total 5 articles about (2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate 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: 98.0%

: 138175-76-5
(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-6-pivaloyloxy-5a-(2''-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-8-spiro-2'-(1',3'-dithiane)-2a-carboxylate

: 145745-86-4
(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

Guidance literature:: With water; calcium carbonate; methyl iodide; In acetonitrile; at 55 ℃; for 7h;
DOI:10.1039/P19920002735

Reference yield:

: 3282-30-2
pivaloyl chloride

: 145745-86-4
(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

Guidance literature:: Multi-step reaction with 3 steps

1: 81 percent / pyridine, DMAP / CH₂Cl₂ / 72 h / 45 °C

2: 82 percent / NaBH₄ / methanol; tetrahydrofuran / 1.5 h

3: 98 percent / MeI, CaCO₃, water / acetonitrile / 7 h / 55 °C

With pyridine; dmap; sodium tetrahydroborate; water; calcium carbonate; methyl iodide; In tetrahydrofuran; methanol; dichloromethane; acetonitrile;
DOI:10.1039/P19920002735

Reference yield:

: 145745-84-2
(2aR*,3R*,4aR*,7aS*,8S*,10aR*,10bR*)-methyl 3-dimethyl(phenyl)silyl-8-hydroxy-4a-methoxyperhydronaphtho<1,8-bc:5,4a-b'>difuran-10-spiro-2'-(1',3'-dithiane)-2a-carboxylate

: 145745-86-4
(2aR*,3R*,5S*,5aR*,6S*,8aR*,8bR*)-methyl 3-dimethyl(phenyl)silyl-5-hydroxy-8-oxo-6-pivaloyloxy-5a-(2'-pivaloyloxyethyl)perhydronaphtho<1,8-bc>furan-2a-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1: 59 percent / toluene-p-sulfonic acid monohydrate / acetonitrile; H₂O / 4.75 h / 1) 53 deg C, 4.75 h, 2) room temperature, 1.5 h

2: 81 percent / pyridine, DMAP / CH₂Cl₂ / 72 h / 45 °C

3: 82 percent / NaBH₄ / methanol; tetrahydrofuran / 1.5 h

4: 98 percent / MeI, CaCO₃, water / acetonitrile / 7 h / 55 °C

With pyridine; dmap; sodium tetrahydroborate; water; toluene-4-sulfonic acid; calcium carbonate; methyl iodide; In tetrahydrofuran; methanol; dichloromethane; water; acetonitrile;
DOI:10.1039/P19920002735