(-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

Base Information

Chemical Name:(-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol
CAS No.:573716-70-8
Molecular Formula:C₂₁H₂₉NO₇S
Molecular Weight:439.53
Hs Code.:

Synonyms:(-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

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Chemical Property of (-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

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Technology Process of (-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

There total 5 articles about (-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-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: 84.0%

: 77-76-9
2,2-dimethoxy-propane

: 573716-64-0
tert-butyl (1S,2R,3S,4R,5S,6R)-2,3,5-trihydroxy-6-[(4-methylphenyl)sulfonyl]-7-azabicyclo[2.2.1]heptane-7-carboxylate

: 573716-70-8
(-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

Guidance literature:: With toluene-4-sulfonic acid; In acetone; at 20 ℃; for 0.133333h;
DOI:10.1021/jo0301088

Reference yield:

: 227454-54-8
5-oxo-6-(toluene-4-sulfonyl)-7-aza-bicyclo[2.2.1]hept-2-ene-7-carboxylic acid tert-butyl ester

: 573716-70-8
(-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

Guidance literature:: Multi-step reaction with 5 steps

1: 85 percent / LiBH₄ / tetrahydrofuran / 0.25 h / -78 °C

2: 47 percent / Et₃N; DMAP / CH₂Cl₂ / 2 h / 20 °C

3: 88 percent / NaOMe / methanol; tetrahydrofuran / 4 h / 0 °C / pH 8

4: 80 percent / OsO₄; morpholine N-oxide / acetone; H₂O; CCl₄ / 2 h

5: 84 percent / p-toluenesulfonic acid monohydrate / acetone / 0.13 h / 20 °C

With 4-morpholinyl-N-oxide; dmap; osmium(VIII) oxide; lithium borohydride; sodium methylate; toluene-4-sulfonic acid; triethylamine; In tetrahydrofuran; methanol; tetrachloromethane; dichloromethane; water; acetone;
DOI:10.1021/jo0301088

Reference yield:

: tert-butyl (1SR,4RS,5SR,6RS)-5-hydroxy-6-[(4-methylphenyl)sulfonyl]-7-azabicyclo[2.2.1]hept-2-ene-7-carboxylate

: 573716-70-8
(-)-(1S,2R,3S,4R,5S,6R)-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-6-endo-p-toluenesulfonyl-7-azabicyclo[2.2.1]heptane-5-endo-ol

Guidance literature:: Multi-step reaction with 4 steps

1: 47 percent / Et₃N; DMAP / CH₂Cl₂ / 2 h / 20 °C

2: 88 percent / NaOMe / methanol; tetrahydrofuran / 4 h / 0 °C / pH 8

3: 80 percent / OsO₄; morpholine N-oxide / acetone; H₂O; CCl₄ / 2 h

4: 84 percent / p-toluenesulfonic acid monohydrate / acetone / 0.13 h / 20 °C

With 4-morpholinyl-N-oxide; dmap; osmium(VIII) oxide; sodium methylate; toluene-4-sulfonic acid; triethylamine; In tetrahydrofuran; methanol; tetrachloromethane; dichloromethane; water; acetone;
DOI:10.1021/jo0301088