Hydrochloric Acid → (S)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one hydrochloride

HRID 2079274Notes

Reaction equation

HRID 2079274 reaction equation
[OH:1][C@@H:2]([CH2:29][CH3:30])[C:3]([N:5]1[CH2:10][CH2:9][N:8]([C:11]2[C:20]3[C:15](=[CH:16][C:17]([CH3:21])=[CH:18][CH:19]=3)[N:14]=[C:13]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[OH:28])[N:12]=2)[CH2:7][CH2:6]1)=[O:4].[ClH:31].CCOCC>C(Cl)Cl>[ClH:31].[OH:1][C@@H:2]([CH2:29][CH3:30])[C:3]([N:5]1[CH2:10][CH2:9][N:8]([C:11]2[C:20]3[C:15](=[CH:16][C:17]([CH3:21])=[CH:18][CH:19]=3)[N:14]=[C:13]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[OH:28])[N:12]=2)[CH2:7][CH2:6]1)=[O:4]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 3283Diethyl Ether2×HCID 136121510(S)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one

Product 1

HCID 136366900(S)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one hydrochlorideYield 84%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of (S)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one (300 mg, 0.73 mmol) in CH2Cl2 was added a 2 M HCl solution in ether (0.365 mL, 0.73 mmol), followed by the addition of ether until the salt precipitated out, which was stirred for an hour, collected by vacuum filtration and dried to afford (S)-2-hydroxy-1-(4-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperazin-1-yl)butan-1-one hydrochloride (270 mg, 84%). LC/MS: m/z 407.5 (M+H)+ at 2.31 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)). 1H NMR (400 MHz, DMSO-d6) d 8.26 (dd, J=7.9, 1.6 Hz, 1H), 8.07 (d, J=8.6 Hz, 1H), 7.73 (s, 1H), 7.47 (m, 2H), 7.03 (m, 2H), 4.26 (dd, J=7.7, 4.8 Hz, 1H), 4.08 (m, 4H), 3.79 (m, 4H), 2.53 (s, 3H), 1.65 (m, 1H), 1.50 (m, 1H), 0.89 (t, J=7.4 Hz, 3H) ppm.

Workup

  1. customprecipitated out
  2. filtrationcollected by vacuum filtration
  3. customdried

Sources & evidence

ORD record
ord-d58117d3ef744420a7cecb9bda397a64
Source dataset
uspto-grants-2011_04
Patent number
US07928107B2

Reaction notes

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