Sodium Azide → (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

HRID 2423369Notes

Reaction equation

[N-:1]=[N+:2]=[N-:3].[Na+].I[CH2:6][CH2:7][O:8][C:9]([C@:11]1([F:31])[C@@H:16]2[C@H:12]1[CH2:13][C@@H:14]([O:21][CH2:22][C:23]1[CH:28]=[CH:27][C:26]([Cl:29])=[C:25]([Cl:30])[CH:24]=1)[C@@:15]2([NH2:20])[C:17]([OH:19])=[O:18])=[O:10]>CN(C)C=O.O>[N:1]([CH2:6][CH2:7][O:8][C:9]([C@:11]1([F:31])[C@@H:16]2[C@H:12]1[CH2:13][C@@H:14]([O:21][CH2:22][C:23]1[CH:28]=[CH:27][C:26]([Cl:29])=[C:25]([Cl:30])[CH:24]=1)[C@@:15]2([NH2:20])[C:17]([OH:19])=[O:18])=[O:10])=[N+:2]=[N-:3]

Participants

Conditions

Temperature: 60 °C

Procedure

6 mg of sodium azide was added to 18 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-iodoethyl)ester dissolved in a mixture of 0.2 mL of N,N-dimethylformamide and 0.02 mL of water at room temperature, and the mixture was stirred for 12 hours at 60° C. After standing to cool, the solvent was distilled under reduced pressure, and the residue was purified by reverse phase column chromatography (Wako gel 50C18, eluent: water to a 70% aqueous solution of acetonitrile), thereby yielding 7 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

Workup

temperatureto cool
distillationthe solvent was distilled under reduced pressure
customthe residue was purified by reverse phase column chromatography (Wako gel 50C18, eluent

Sources & evidence

ORD record: ord-b0987f53d922465b9bc83703e4407f4c
Source dataset: uspto-grants-2011_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07960579B2

Reaction notes

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