Formaldehyde → 4-{[(4-tert-Butyl-phenyl)-(4-iodo-phenylcarbamoyl)-methyl]-methyl-amino}-benzoic Acid Tert-butyl Ester

HRID 2371266Notes

Reaction equation

HRID 2371266 reaction equation
[C:1]([O:5][C:6](=[O:35])[C:7]1[CH:12]=[CH:11][C:10]([NH:13][CH:14]([C:25]2[CH:30]=[CH:29][C:28]([C:31]([CH3:34])([CH3:33])[CH3:32])=[CH:27][CH:26]=2)[C:15](=[O:24])[NH:16][C:17]2[CH:22]=[CH:21][C:20]([I:23])=[CH:19][CH:18]=2)=[CH:9][CH:8]=1)([CH3:4])([CH3:3])[CH3:2].C=O.[C:38]([BH3-])#N.[Na+].CCOC(C)=O>CC(O)=O>[C:1]([O:5][C:6](=[O:35])[C:7]1[CH:12]=[CH:11][C:10]([N:13]([CH:14]([C:25]2[CH:30]=[CH:29][C:28]([C:31]([CH3:34])([CH3:33])[CH3:32])=[CH:27][CH:26]=2)[C:15](=[O:24])[NH:16][C:17]2[CH:22]=[CH:21][C:20]([I:23])=[CH:19][CH:18]=2)[CH3:38])=[CH:9][CH:8]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 4

HCID 712FormaldehydeHCID 8857Ethyl AcetateHCID 5003444Sodium cyanoborohydrideHCID 674865594-{[(4-tert-Butyl-phenyl)-(4-iodo-phenylcarbamoyl)-methyl]-amino}-benzoic Acid Tert-butyl Ester

Product 1

HCID 674863434-{[(4-tert-Butyl-phenyl)-(4-iodo-phenylcarbamoyl)-methyl]-methyl-amino}-benzoic Acid Tert-butyl EsterYield 105.5%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

4-{[(4-tert-Butyl-phenyl)-(4-iodo-phenylcarbamoyl)-methyl]-amino}-benzoic acid tert-butyl ester (110 mg, 0.19 mmol) was dissolved in 2 mL of HOAc. paraformaldehyde (51 mg, 0.57 mmol) and sodium cyano-borohydride (36 mg, 0.57 mmol) were then added and heated to 40 C for 1 h. Cooled to RT, EtOAc (20 mL) was added and extracted water (20 mL). The organic layer was washed again with water (20 mL), dried over sodium sulfate, filtered and the organic layer was removed under reduced pressure to give a white solid (120 mg, 100%). 1H NMR showed the compound to be very clean and sufficient for the following step. LCMS (M+1=599.4)

Workup

  1. temperatureheated to 40 C for 1 h
  2. extractionextracted water (20 mL)
  3. washThe organic layer was washed again with water (20 mL)
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. customthe organic layer was removed under reduced pressure

Sources & evidence

ORD record
ord-4efc979011514c6b862ad26c81d10acb
Source dataset
uspto-grants-2014_04
Patent number
US08710236B2

Reaction notes

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