3-[((1S)-2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-1-methylethyl)oxy]-N-(1-methyl-1H-pyrazol-3-yl)-5-[(phenylmethyl)oxy]benzamide → 3-[((1S)-2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-1-methylethyl)oxy]-5-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)benzamide

HRID 20509

Reaction equation

HRID 20509 reaction equation
[Si:1]([O:8][CH2:9][C@H:10]([CH3:35])[O:11][C:12]1[CH:13]=[C:14]([CH:24]=[C:25]([O:27]CC2C=CC=CC=2)[CH:26]=1)[C:15]([NH:17][C:18]1[CH:22]=[CH:21][N:20]([CH3:23])[N:19]=1)=[O:16])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]>CO>[Si:1]([O:8][CH2:9][C@H:10]([CH3:35])[O:11][C:12]1[CH:13]=[C:14]([CH:24]=[C:25]([OH:27])[CH:26]=1)[C:15]([NH:17][C:18]1[CH:22]=[CH:21][N:20]([CH3:23])[N:19]=1)=[O:16])([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:3])[CH3:2]

Participants

3

Procedure

3-((1S)-2-{[tert-Butyl(dimethyl)silyl]oxy}-1-methylethyloxy)-5-(phenylmethyl)oxy-N-(1-methyl-1H-pyrazol-3-yl)benzamide (1.8 g, 3.64 mmol) was dissolved in methanol (50 mL) and the flask evacuated and purged with nitrogen (3 times). 10% Palladium on carbon (0.2 g) was added and the flask further evacuated and finally purged with hydrogen gas. The reaction mixture was stirred at ambient temperature for 16 hours until completion. The reaction mixture was evacuated and purged with nitrogen (3 times). The catalyst was filtered off, and the filtrate concentrated in vacuo to give the desired compound (1.45 g).

Workup

  1. customthe flask evacuated
  2. custompurged with nitrogen (3 times)
  3. addition10% Palladium on carbon (0.2 g) was added
  4. customthe flask further evacuated
  5. customfinally purged with hydrogen gas
  6. customThe reaction mixture was evacuated
  7. custompurged with nitrogen (3 times)
  8. filtrationThe catalyst was filtered off
  9. concentrationthe filtrate concentrated in vacuo

Sources & evidence

ORD record
ord-381855ca87de402e8ed3b2ff5653ee53
Source dataset
uspto-grants-2010_06
Patent number
US07745475B2

Linked notes

Loading…