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Sodium Hydroxide → 1,1-Dimethylethyl 4-[6-(benzyloxy)-3-(3,4-dimethoxybenzyl)-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl]piperidine-1-carboxylate

HRID 80464
Notes
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Reaction equation

HRID 80464 reaction equation
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([N:15]([C:29]([O:31]CC(C)C)=O)[CH:16]2[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]2)=[C:11]([C:36](=[O:49])[NH:37][CH2:38][C:39]2[CH:44]=[CH:43][C:42]([O:45][CH3:46])=[C:41]([O:47][CH3:48])[CH:40]=2)[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+]>ClCCCl.C(Cl)Cl>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:12](=[CH:13][CH:14]=1)[N:15]([CH:16]1[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:26])([CH3:27])[CH3:28])=[O:23])[CH2:18][CH2:17]1)[C:29](=[O:31])[N:37]([CH2:38][C:39]1[CH:44]=[CH:43][C:42]([O:45][CH3:46])=[C:41]([O:47][CH3:48])[CH:40]=1)[C:36]2=[O:49])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 666037821,1-Dimethylethyl 4-[{4-(benzyloxy)-2-[(3,4-dimethoxybenzyl)carbamoyl]phenyl}(isobutoxycarbonyl)amino]piperidine-1-carboxylate2×

Product 1

HCID 595870451,1-Dimethylethyl 4-[6-(benzyloxy)-3-(3,4-dimethoxybenzyl)-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl]piperidine-1-carboxylateYield 296.5%

Reagents, catalysts & solvents 2

HCID 11
1,2-Dichloroethane
Solvent
HCID 6344DichloromethaneSolvent

Procedure

A mixture of 2.5 g of 1,1-dimethylethyl 4-[{4-(benzyloxy)-2-[(3,4-dimethoxybenzyl)carbamoyl]phenyl}(isobutoxycarbonyl)amino]piperidine-1-carboxylate obtained in stage 1.4 and 7.4 g of NaOH in 18.5 ml of DCE is irradiated under a microwave field at 110° C. for 30 min. The same reaction is repeated with 2 other lots of 2.5 g of 1,1-dimethylethyl 4-[{4-(benzyloxy)-2-[(3,4-dimethoxybenzyl)carbamoyl]phenyl}-(isobutoxycarbonyl)amino]piperidine-1-carboxylate. The 3 reaction media are combined. The combined product is taken up in DCM, washed with water, dried over Na2SO4 and filtered, and the solvent is evaporated under reduced pressure to give 6.6 g of expected product.

Workup

  1. customis irradiated under a microwave field at 110° C. for 30 min
  2. customThe same reaction
  3. customThe 3 reaction media
  4. washwashed with water
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. customthe solvent is evaporated under reduced pressure

Sources & evidence

ORD record
ord-5023d672395f4657b7f14071174cb38d
Source dataset
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08846654B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes