Hydrochloric Acid → 1-{4-[(2H-1,3-benzodioxol-5-ylmethyl)amino]-6-chloroquinazolin-2-yl}piperidine-4-carboxylic acid hydrochloride

HRID 1384915Notes

Reaction equation

HRID 1384915 reaction equation
[C:1]([CH:4]1[CH2:9][CH2:8][N:7]([C:10]2[N:19]=[C:18]([NH:20][CH2:21][C:22]3[CH:27]=[CH:26][C:25]4[O:28][CH2:29][O:30][C:24]=4[CH:23]=3)[C:17]3[C:12](=[CH:13][CH:14]=[C:15]([Cl:31])[CH:16]=3)[N:11]=2)[CH2:6][CH2:5]1)([OH:3])=[O:2].Cl>O1CCCC1.C(O)C>[ClH:31].[C:1]([CH:4]1[CH2:9][CH2:8][N:7]([C:10]2[N:19]=[C:18]([NH:20][CH2:21][C:22]3[CH:27]=[CH:26][C:25]4[O:28][CH2:29][O:30][C:24]=4[CH:23]=3)[C:17]3[C:12](=[CH:13][CH:14]=[C:15]([Cl:31])[CH:16]=3)[N:11]=2)[CH2:6][CH2:5]1)([OH:3])=[O:2]

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 53114861-(6-Chloro-4-(3,4-methylenedioxybenzyl)aminoquinazolin-2-yl)piperidine-4-carboxylic acid

Product 1

HCID 211839871-{4-[(2H-1,3-benzodioxol-5-ylmethyl)amino]-6-chloroquinazolin-2-yl}piperidine-4-carboxylic acid hydrochlorideYield 172.6%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

2.00 g (4.54 mmol) of the 2-(4-carboxypiperidino)-4-(3,4-methylenedioxybenzyl)amino-6-chloroquinazoline prepared in Example 222 was dissolved in a mixture comprising 25 ml of tetrahydrofuran and 25 ml of ethanol under heating, followed by the dropwise addition of 1.0 ml of an 8M ethanolic solution of hydrochloric acid. The obtained mixture was cooled by allowing to stand to precipitate crystals. The crystals were recovered by filtration, washed with tetrahydrofuran, and air-dried to give 1.87 g of the title compound.

Workup

  1. temperatureunder heating
  2. temperatureThe obtained mixture was cooled
  3. customto precipitate crystals
  4. filtrationThe crystals were recovered by filtration
  5. washwashed with tetrahydrofuran
  6. customair-dried

Sources & evidence

ORD record
ord-2f9a4801271947a88f1e365eab659da6
Source dataset
uspto-grants-2001_07
Patent number
US06262059B1

Reaction notes

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