Hydrochloric Acid → (1R,2S,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzylsulfanyl)-6-fluoro-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid

HRID 2380845Notes

Reaction equation

HRID 2380845 reaction equation
O.[OH-].[Li+].C([O:6][C:7]([C@:9]1([NH2:31])[C@H:14]([S:15][CH2:16][C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[C:19]([Cl:24])[CH:18]=2)[CH2:13][C@@H:12]2[C@H:10]1[C@@:11]2([F:30])[C:25]([O:27]CC)=[O:26])=[O:8])C.Cl>O1CCCC1.O>[NH2:31][C@@:9]1([C:7]([OH:8])=[O:6])[C@H:14]([S:15][CH2:16][C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[C:19]([Cl:24])[CH:18]=2)[CH2:13][C@@H:12]2[C@H:10]1[C@@:11]2([F:30])[C:25]([OH:27])=[O:26]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 11442306(1R,2S,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzylsulfanyl)-6-fluoro-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid diethyl ester

Product 1

HCID 11315391(1R,2S,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzylsulfanyl)-6-fluoro-bicyclo[3.1.0]hexane-2,6-dicarboxylic acidYield 72.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 8028TetrahydrofuranSolvent

Procedure

12 mg of lithium hydroxide hydrate was added to 41 mg of (1R,2S,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzylsulfanyl)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid diethyl ester dissolved in 0.8 mL of tetrahydrofuran and 0.4 mL of water, and the mixture was stirred for 5.5 days at room temperature. The mixture was adjusted to pH=3 with 1N hydrochloric acid in an ice bath. 30 mL of water was added thereto, and after the mixture was stirred for 1 hour at room temperature and then purified by ion exchange resin (AG 50W-X8 Resin (H form), eluent:water, a 40% aqueous solution of tetrahydrofuran and a 10% aqueous solution of pyridine), the obtained solids were further washed with tetrahydrofuran, thereby yielding 26 mg of (1R,2S,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzylsulfanyl)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid.

Workup

  1. custompurified by ion exchange resin (AG 50W-X8 Resin (H form), eluent
  2. washwater, a 40% aqueous solution of tetrahydrofuran and a 10% aqueous solution of pyridine), the obtained solids were further washed with tetrahydrofuran

Sources & evidence

ORD record
ord-d89b4f84f53d4c8bb1bad6a1fac87224
Source dataset
uspto-grants-2012_09
Patent number
US08258133B2

Reaction notes

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