Sodium Hydroxide → (2S,4R)-1-{2-[4-(4-chloro-phenyl)-piperazin-1-yl]-5-oxo-6,7-dihydro-5H-5lambda4-thieno[3,2-d]pyrimidin-4-yl}-4-hydroxy-pyrrolidine-2-carboxylic acid

HRID 1641343Notes

Reaction equation

HRID 1641343 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:13][CH2:12][N:11]([C:14]3[N:15]=[C:16]([N:24]4[CH2:28][C@H:27]([OH:29])[CH2:26][C@H:25]4[C:30]([O:32]C)=[O:31])[C:17]4[S:22](=[O:23])[CH2:21][CH2:20][C:18]=4[N:19]=3)[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.[OH-].[Na+]>CO>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH2:9][CH2:10][N:11]([C:14]3[N:15]=[C:16]([N:24]4[CH2:28][C@H:27]([OH:29])[CH2:26][C@H:25]4[C:30]([OH:32])=[O:31])[C:17]4[S:22](=[O:23])[CH2:21][CH2:20][C:18]=4[N:19]=3)[CH2:12][CH2:13]2)=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 59708424METHYL (2S,4R)-1-{2-[4-(4-CHLORO-PHENYL)-PIPERAZIN-1-YL]-5-OXO-6,7-DIHYDRO-5H-5lambda4-THIENO [3,2-D]PYRIMIDIN-4-YL}-4-HYDROXY-PYRROLIDINE-2-CARBOXYLATE

Product 1

HCID 59708417(2S,4R)-1-{2-[4-(4-chloro-phenyl)-piperazin-1-yl]-5-oxo-6,7-dihydro-5H-5lambda4-thieno[3,2-d]pyrimidin-4-yl}-4-hydroxy-pyrrolidine-2-carboxylic acidYield 102.9%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

1.12 g methyl (2S,4R)-1-{2-[4-(4-chloro-phenyl)-piperazin-1-yl]-5-oxo-6,7-dihydro-5H-5λ4-thieno[3,2-d]pyrimidin-4-yl}-4-hydroxy-pyrrolidine-2-carboxylate as a mixture of diastereomers (cf Example 125) and 11.38 ml of 1 molar sodium hydroxide solution are placed in 10 ml of methanol, then refluxed for 4 hours with stirring. The resulting suspension is evaporated down, the residue is cooled and acidified with 2 molar hydrochloric acid and the suspension is evaporated down again. The product is purified by preparative HPLC (method A). 1.12 g of the product are obtained as a powder.

Workup

  1. temperaturerefluxed for 4 hours
  2. customThe resulting suspension is evaporated down
  3. temperaturethe residue is cooled
  4. customthe suspension is evaporated down again
  5. customThe product is purified by preparative HPLC (method A)

Sources & evidence

ORD record
ord-42ef7e3d32b9451995eb47fdbb9c7e18
Source dataset
uspto-grants-2012_02
Patent number
US08114878B2

Reaction notes

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