trimethylphosphine THF → (1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-(2-aminoethyl)ester

HRID 658534Notes

Reaction equation

HRID 658534 reaction equation
CP(C)C.O1CCCC1.[N:10]([CH2:13][CH2:14][O:15][C:16]([C@:18]1([F:38])[C@@H:23]2[C@H:19]1[CH2:20][C@@H:21]([O:28][CH2:29][C:30]1[CH:35]=[CH:34][C:33]([Cl:36])=[C:32]([Cl:37])[CH:31]=1)[C@@:22]2([NH2:27])[C:24]([OH:26])=[O:25])=[O:17])=[N+]=[N-]>O1CCCC1.O>[NH2:10][CH2:13][CH2:14][O:15][C:16]([C@:18]1([F:38])[C@@H:23]2[C@H:19]1[CH2:20][C@@H:21]([O:28][CH2:29][C:30]1[CH:35]=[CH:34][C:33]([Cl:36])=[C:32]([Cl:37])[CH:31]=1)[C@@:22]2([NH2:27])[C:24]([OH:26])=[O:25])=[O:17]

Participants

5

Reactant 2

HCID 86589763trimethylphosphine THFHCID 86610093(1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-(2-azidoethyl)ester

Product 1

HCID 66628581(1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-(2-aminoethyl)esterYield 35.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

20 μL of a 1M trimethylphosphine/tetrahydrofuran solution was added to 6 mg of (1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-(2-azidoethyl) ester dissolved in a mixture of 0.15 mL of tetrahydrofuran and 0.02 mL of water at room temperature, and the mixture was stirred for 13 hours. After the solvent was distilled under reduced pressure, the residue was purified by reverse phase column chromatography (Wako gel 50C18 (made by Wako Pure Chemical Industries Ltd.), eluent: water to a 50% aqueous solution of acetonitrile), and the obtained solids were further washed with tetrahydrofuran, thereby yielding 2 mg of (1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-(2-aminoethyl) ester.

Workup

  1. distillationAfter the solvent was distilled under reduced pressure
  2. customthe residue was purified by reverse phase column chromatography (Wako gel 50C18 (made by Wako Pure Chemical Industries Ltd.), eluent
  3. washwater to a 50% aqueous solution of acetonitrile), and the obtained solids were further washed with tetrahydrofuran

Sources & evidence

ORD record
ord-2056f3bc32984a5ea939f050147c5a14
Source dataset
uspto-grants-2011_12
Patent number
US08076502B2

Reaction notes

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