(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

Base Information

Chemical Name:(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester
CAS No.:857681-81-3
Molecular Formula:C₂₈H₄₇NO₆Si₂
Molecular Weight:549.855
Hs Code.:

(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

Synonyms:(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

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Chemical Property of (3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

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Technology Process of (3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

There total 8 articles about (3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester 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: 91.0%

: 857681-75-5
(3R,3aS,7aR)-3-((S)-1-Hydroxy-2-methyl-propyl)-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

: 91158-36-0
dimethylisopropylsilyl trifluoromethanesulfonate

: 857681-81-3
(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

Guidance literature:: With 2,6-dimethylpyridine; In dichloromethane; at 23 ℃; for 12h;
DOI:10.1021/ol0508734

Reference yield:

: 1027961-34-7
(2R,3S)-2-Benzyloxymethyl-3-hydroxy-4-iodomethyl-1-(4-methoxy-benzyl)-3-methyl-5-oxo-pyrrolidine-2-carboxylic acid methyl ester

: 857681-81-3
(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 7 steps

1.1: 3.53 g / triethylamine / CH₂Cl₂ / 0.5 h / 23 °C

2.1: 96 percent / imidazole / dimethylformamide / 0.5 h / 0 °C

3.1: 89 percent / tributyltin hydride; AIBN / benzene / 8 h / 80 °C

4.1: H₂ / Pd/C / ethanol / 18 h / 23 °C / 760 Torr

5.1: 2.68 g / Dess-Martin periodinane / CH₂Cl₂ / 1 h / 23 °C

6.1: trimethylsilyl chloride / tetrahydrofuran / 5 h / -78 °C

6.2: 95 percent / H₂ / Pd/C / ethanol / 12 h / 23 °C / 760 Torr

7.1: 91 percent / 2,6-lutidine / CH₂Cl₂ / 12 h / 23 °C

With 1H-imidazole; 2,6-dimethylpyridine; chloro-trimethyl-silane; 2,2'-azobis(isobutyronitrile); hydrogen; tri-n-butyl-tin hydride; Dess-Martin periodane; triethylamine; palladium on activated charcoal; In tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; benzene; 5.1: Dess-Martin oxidation / 6.1: Grignard addition;
DOI:10.1021/ol0508734

Reference yield:

: 704910-34-9
methyl (2R,3S)-1-(4-methoxybenzyl)-2-((benzyloxy)methyl)-3-hydroxy-3-methyl-4-methylene-5-oxopyrrolidine-2-carboxaldehyde

: 857681-81-3
(3R,3aS,7aR)-3-[(S)-1-(Isopropyl-dimethyl-silanyloxy)-2-methyl-propyl]-2-(4-methoxy-benzyl)-3a,5,5-trimethyl-1-oxo-octahydro-4-oxa-2-aza-5-sila-indene-3-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 6 steps

1.1: 96 percent / imidazole / dimethylformamide / 0.5 h / 0 °C

2.1: 89 percent / tributyltin hydride; AIBN / benzene / 8 h / 80 °C

3.1: H₂ / Pd/C / ethanol / 18 h / 23 °C / 760 Torr

4.1: 2.68 g / Dess-Martin periodinane / CH₂Cl₂ / 1 h / 23 °C

5.1: trimethylsilyl chloride / tetrahydrofuran / 5 h / -78 °C

5.2: 95 percent / H₂ / Pd/C / ethanol / 12 h / 23 °C / 760 Torr

6.1: 91 percent / 2,6-lutidine / CH₂Cl₂ / 12 h / 23 °C

With 1H-imidazole; 2,6-dimethylpyridine; chloro-trimethyl-silane; 2,2'-azobis(isobutyronitrile); hydrogen; tri-n-butyl-tin hydride; Dess-Martin periodane; palladium on activated charcoal; In tetrahydrofuran; ethanol; dichloromethane; N,N-dimethyl-formamide; benzene; 4.1: Dess-Martin oxidation / 5.1: Grignard addition;
DOI:10.1021/ol0508734