4-isopropyl-6-[3-(phenylmethyloxycarbonyl)propoxy]-2-(1-phenyl-3-trifluoro methylpyrazol-5-yl-oxymethyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxide → 4-isopropyl-6-[3-(carboxy)propoxy]-2-(1-phenyl-3-trifluoromethylpyrazol-5-yl-oxymethyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxide

HRID 1289845Notes

Reaction equation

HRID 1289845 reaction equation
[CH:1]([C:4]1[C:9]2[C:10](=[O:32])[N:11]([CH2:15][O:16][C:17]3[N:21]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)[N:20]=[C:19]([C:28]([F:31])([F:30])[F:29])[CH:18]=3)[S:12](=[O:14])(=[O:13])[C:8]=2[CH:7]=[C:6]([O:33][CH2:34][CH2:35][CH2:36][C:37]([O:39]CC2C=CC=CC=2)=[O:38])[CH:5]=1)([CH3:3])[CH3:2].[H][H]>C(OCC)(=O)C.[Pd]>[CH:1]([C:4]1[C:9]2[C:10](=[O:32])[N:11]([CH2:15][O:16][C:17]3[N:21]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=4)[N:20]=[C:19]([C:28]([F:31])([F:29])[F:30])[CH:18]=3)[S:12](=[O:14])(=[O:13])[C:8]=2[CH:7]=[C:6]([O:33][CH2:34][CH2:35][CH2:36][C:37]([OH:39])=[O:38])[CH:5]=1)([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 676415074-isopropyl-6-[3-(phenylmethyloxycarbonyl)propoxy]-2-(1-phenyl-3-trifluoro methylpyrazol-5-yl-oxymethyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxideHCID 178418361HCID 178418361, compound

Product 1

HCID 98080574-isopropyl-6-[3-(carboxy)propoxy]-2-(1-phenyl-3-trifluoromethylpyrazol-5-yl-oxymethyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxideYield 90.4%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 4-isopropyl-6-[3-(phenylmethyloxycarbonyl)propoxy]-2-(1-phenyl-3-trifluoromethylpyrazol-5-yl-oxymethyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxide (820 mg) and 200 mg of 10% Pd/C in 40 ml of ethyl acetate was hydrogenated (hydrogen balloon). The catalyst was removed on a pad of CELIITEO and the filtrate was concentrated in vacuo to afford 640 mg (90%) of 4-isopropyl-6-[3-(carboxy)propoxy]-2-(1-phenyl-3-trifluoromethylpyrazol-5-yl-oxymethyl)-1,2-benzisothiazol-3(2H)-one 1,1-dioxide (Formula I: R1 =Ph; R2 =CH3 ; R3 =H; R4 =CH(CH3)2 ; R5 =6-O(CH2)3CO2 as a foam.

Workup

  1. customThe catalyst was removed on a pad of CELIITEO
  2. concentrationthe filtrate was concentrated in vacuo

Sources & evidence

ORD record
ord-02bfa0ce9b5b475580c5811c50f7b892
Source dataset
uspto-grants-1998_05
Patent number
US05750550

Reaction notes

Loading…