(4-((2-(Dimethylamino)ethyl)carbamoyl)phenyl)boronic acid → 4-(2'-amino-1'-methyl-5'-oxo-2-phenyl-1',5'-dihydrospiro[chroman-4,4'-imidazole]-6-yl)-N-(2-(dimethylamino)ethyl)benzamide

HRID 2096584Notes

Reaction equation

HRID 2096584 reaction equation
[NH2:1][C:2]1[N:3]([CH3:24])[C:4](=[O:23])[C:5]2([C:15]3[C:10](=[CH:11][CH:12]=[C:13](Br)[CH:14]=3)[O:9][CH:8]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:7]2)[N:6]=1.[CH3:25][N:26]([CH3:41])[CH2:27][CH2:28][NH:29][C:30]([C:32]1[CH:37]=[CH:36][C:35](B(O)O)=[CH:34][CH:33]=1)=[O:31]>O1CCOCC1.C([O-])([O-])=O.[Cs+].[Cs+].Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[NH2:1][C:2]1[N:3]([CH3:24])[C:4](=[O:23])[C:5]2([C:15]3[C:10](=[CH:11][CH:12]=[C:13]([C:35]4[CH:36]=[CH:37][C:32]([C:30]([NH:29][CH2:28][CH2:27][N:26]([CH3:25])[CH3:41])=[O:31])=[CH:33][CH:34]=4)[CH:14]=3)[O:9][CH:8]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:7]2)[N:6]=1

Participants

6

Reactant 2

HCID 44118750(4-((2-(Dimethylamino)ethyl)carbamoyl)phenyl)boronic acidHCID 584237682'-amino-6-bromo-1'-methyl-2-phenylspiro[chroman-4,4'-imidazol]-5'(1'H)-one

Product 1

HCID 584245384-(2'-amino-1'-methyl-5'-oxo-2-phenyl-1',5'-dihydrospiro[chroman-4,4'-imidazole]-6-yl)-N-(2-(dimethylamino)ethyl)benzamideYield 18.1%

Reagents, catalysts & solvents 3

HCID 178418476HCID 178418476, compoundCatalystHCID 10796Cesium carbonateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

Pd(PPh3)2Cl2 (10 mg, 0.01 mmol) in a 10 mL of flask under Ar2 was treated sequentially with 2′-amino-6-bromo-1′-methyl-2-phenylspiro[chroman-4,4′-imidazol]-5′(1′H)-one (20 mg, 0.052 mmol) in 1,4-dioxane (1 mL), Cs2CO3 (2 N, 0.3 mL) and 4-(2-(dimethylamino) ethylcarbamoyl)phenylboronic acid (25 mg, 0.104 mmol). The mixture was heated under 120° C. at Ar2 under microwave for 30 minutes. The reaction mixture was concentrated in vacuo to give the residue, which was purified preparative TLC and HPLC to give 4-(2′-amino-1′-methyl-5′-oxo-2-phenyl-1′,5′-dihydrospiro[chroman-4,4′-imidazole]-6-yl)-N-(2-(dimethylamino)ethyl)benzamide (4.68 mg, 18%). 1H-NMR (MeOD): 2.47 (m, 1H), 2.63 (m, 1H), 3.01 (s, 6H), 3.30 (s, 3H), 3.42 (m, 2H), 3.79 (m, 2H), 5.88 (m, 1H), 7.17 (m, 1H), 7.39 (m, 1H), 7.46 (m, 2H), 7.52 (m, 2H), 7.58 (m, 1H), 7.71 (m, 1H), 7.76 (m, 2H), 7.96 (m, 2H).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customto give the residue, which
  3. customwas purified preparative TLC and HPLC

Sources & evidence

ORD record
ord-4bd68e1e62d54e2b934ecbe7eddc262b
Source dataset
uspto-grants-2013_05
Patent number
US08450308B2

Reaction notes

Loading…