N-methyl-2-pyrrolidone → HCID 86723620, compound

HRID 1777705Notes

Reaction equation

HRID 1777705 reaction equation
[C:1]([O:5][C:6](=[O:28])[NH:7][C@H:8]([C:10]1[N:19]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:18](=[O:26])[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][C:16]=2Br)[N:11]=1)[CH3:9])([CH3:4])([CH3:3])[CH3:2].[CH3:29][N:30]1C(=O)CCC1>[C-]#N.[Zn+2].[C-]#N>[C:1]([O:5][C:6](=[O:28])[NH:7][C@H:8]([C:10]1[N:19]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[C:18](=[O:26])[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][C:16]=2[C:29]#[N:30])[N:11]=1)[CH3:9])([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 2

HCID 13387N-methyl-2-pyrrolidoneHCID 86723621HCID 86723621, compound

Product 1

HCID 86723620HCID 86723620, compound

Reagents, catalysts & solvents 1

HCID 11186Zinc cyanide (Zn(CN)2)Catalyst

Conditions

Temperature
90 °C

Procedure

(S)-tert-butyl(1-(5-bromo-4-oxo-3-phenyl-3,4-dihydroquinazolin-2-yl)ethyl)carbamate (500 mg, 1.13 mmol), zinc cyanide (166 mg, 1.41 mmol), and tetrakis(triphenylphosphine)Pd(0) (124 mg, 0.11 mmol) were combined in NMP (5 mL). The mixture was degassed under Ar and heated to 90° C. overnight. The reaction was poured into EtOAc, washed with water (3×), and purified by flash chromatography (40 g silica, 0-50% EtOAc/hexanes) to give (S)-tert-butyl(1-(5-cyano-4-oxo-3-phenyl-3,4-dihydroquinazolin-2-yl)ethyl)carbamate as a white solid. ES/MS 391.2 (M+H+).

Workup

  1. customThe mixture was degassed under Ar
  2. additionThe reaction was poured into EtOAc
  3. washwashed with water (3×)
  4. custompurified by flash chromatography (40 g silica, 0-50% EtOAc/hexanes)

Sources & evidence

ORD record
ord-c565e454ffce4fdcb2d020de2d83b932
Source dataset
uspto-grants-2016_02
Patent number
US09266878B2

Reaction notes

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