Acetic Acid → 5-[4-(1-Methyl-7-azaindol-2-ylmethoxy)benzyl]thiazolidine-2,4-dione

HRID 356255Notes

Reaction equation

HRID 356255 reaction equation
[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][N:9]=2)[CH:4]=[C:3]1[CH2:11][O:12][C:13]1[CH:45]=[CH:44][C:16]([CH2:17][CH:18]2[S:22][C:21](=[O:23])[N:20](C(C3C=CC=CC=3)(C3C=CC=CC=3)C3C=CC=CC=3)[C:19]2=[O:43])=[CH:15][CH:14]=1.C(O)(=O)C.O>O1CCOCC1>[CH3:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][N:9]=2)[CH:4]=[C:3]1[CH2:11][O:12][C:13]1[CH:14]=[CH:15][C:16]([CH2:17][CH:18]2[S:22][C:21](=[O:23])[NH:20][C:19]2=[O:43])=[CH:44][CH:45]=1

Participants

5

Reactant 3

HCID 176Acetic AcidHCID 962WaterHCID 232982875-[4-(1-Methyl-7-azaindol-2-ylmethoxy)-benzyl]-3-triphenylmethylthiazolidine-2,4-dione

Product 1

HCID 232983835-[4-(1-Methyl-7-azaindol-2-ylmethoxy)benzyl]thiazolidine-2,4-dioneYield 96.5%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

A procedure similar to that described in Example 12 was repeated, except that the reaction was conducted using 270 mg of 5-[4-(1-methyl-7-azaindol-2-ylmethoxy)-benzyl]-3-triphenylmethylthiazolidine-2,4-dione (prepared as described in Preparation 82) and 3 ml of a 2:1:3 by volume mixture of acetic acid, water and 1,4-dioxane. After the period allowed for the reaction had elapsed, the reaction mixture was freed from the solvent by distillation under reduced pressure. The residue was purified by column chromatography through silica gel, using a 1:1 by volume mixture of hexane and ethyl acetate as the eluent, to give 157 mg of the title compound, melting at 183°-185° C.

Workup

  1. distillationthe reaction mixture was freed from the solvent by distillation under reduced pressure
  2. customThe residue was purified by column chromatography through silica gel
  3. additionby volume mixture of hexane and ethyl acetate as the eluent

Sources & evidence

ORD record
ord-18078756ee27427692994e7cab8668ac
Source dataset
uspto-grants-1998_11
Patent number
US05834501

Reaction notes

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