Resorcinol → HCID 23387532, compound

HRID 1790788Notes

Reaction equation

HRID 1790788 reaction equation
[C:1]([NH:11][C@H:12]([C:16]([OH:18])=[O:17])[CH:13]([CH3:15])[CH3:14])([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2].[OH:19][C:20]1[CH:25]=[CH:24][CH:23]=[C:22](O)[CH:21]=1>CN(C)C1C=CN=CC=1.CN(C=O)C>[C:1]([NH:11][C@H:12]([C:16]([O:18][C:22]1[CH:21]=[C:20]([OH:19])[CH:25]=[CH:24][CH:23]=1)=[O:17])[CH:13]([CH3:14])[CH3:15])([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2]

Participants

5

Reactant 2

HCID 5054ResorcinolHCID 726987N-Carbobenzoxy-L-valine

Product 1

HCID 23387532HCID 23387532, compoundYield 79.4%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

CBz-L-valine (10 g, 40 mmol), 1,3-dihydroxybenzene (8.7 g, 79 mmol) N,N′dicychlohexylcarbodiimide (10.2 g, 44 mmol) and 4-dimethylaminopyridine (2.4 g, 20 mmol) were dissolved in DMF (50 ml) and left at ambient temperature overnight. The reaction mixture was filtered, the solvent removed under reduced pressure and the crude product was taken up in dichloromethane and filtered. Removal of the solvent followed by purification by chromatography (chloroform-methanol, 10:1) yielded pure title product (10.9 g, 79%).

Workup

  1. filtrationThe reaction mixture was filtered
  2. customthe solvent removed under reduced pressure
  3. filtrationfiltered
  4. customRemoval of the solvent
  5. customfollowed by purification by chromatography (chloroform-methanol, 10:1)

Sources & evidence

ORD record
ord-d207e27a45db4852acedf58671452cf2
Source dataset
uspto-grants-2006_07
Patent number
US07071173B2

Reaction notes

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