Methylparaben → methyl-4-((6-(2-(dimethylamino)-1-(1H-imidazol-yl)butyl)benzo[d]thiazol-2-yl)oxy)benzoate

HRID 538879Notes

Reaction equation

Br[C:2]1[S:3][C:4]2[CH:10]=[C:9]([CH:11]([N:18]3[CH:22]=[CH:21][N:20]=[CH:19]3)[CH:12]([N:15]([CH3:17])[CH3:16])[CH2:13][CH3:14])[CH:8]=[CH:7][C:5]=2[N:6]=1.[CH3:23][O:24][C:25](=[O:33])[C:26]1[CH:31]=[CH:30][C:29]([OH:32])=[CH:28][CH:27]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH3:23][O:24][C:25](=[O:33])[C:26]1[CH:31]=[CH:30][C:29]([O:32][C:2]2[S:3][C:4]3[CH:10]=[C:9]([CH:11]([N:18]4[CH:22]=[CH:21][N:20]=[CH:19]4)[CH:12]([N:15]([CH3:17])[CH3:16])[CH2:13][CH3:14])[CH:8]=[CH:7][C:5]=3[N:6]=2)=[CH:28][CH:27]=1

Participants

Conditions

Temperature: 80 °C

Procedure

A suspension of 1-(2-bromobenzo[d]thiazol-6-yl)-1-(1H-imidazol-1-yl)-N,N-dimethyl-butan-2-amine (54 mg, 0.14 mmol), methyl-4-hydroxybenzoate (21.7 mg, 0.14 mmol) and potassium carbonate (21.6 mg, 0.16 mmol) in 1 mL of DMF was heated at 80° C. overnight. The mixture was concentration in vacuo and the residue partitioned between water and DCM. After extracting the aqueous layer, the combined DCM extracts were dried over Na2SO4, decanted and concentrated in vacuo. The residue was purified using PTLC and eluting with 5% MeOH (2N NH3)/DCM to provide methyl-4-((6-(2-(dimethylamino)-1-(1H-imidazol-yl)butyl)benzo[d]thiazol-2-yl)oxy)benzoate. MS (ESI) m/z 451.17 [M+H]+.

Workup

concentrationconcentration in vacuo
customthe residue partitioned between water and DCM
extractionAfter extracting the aqueous layer
dry with materialthe combined DCM extracts were dried over Na2SO4
customdecanted
concentrationconcentrated in vacuo
customThe residue was purified
washeluting with 5% MeOH (2N NH3)/DCM

Sources & evidence

ORD record: ord-74c7b47d3f584af98238e4d1315e337b
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08865752B2

Reaction notes

Loading…