Hydrochloric Acid → [(Z)-[1-amino-2-[3-[(2-chloro-6H-thieno[2,3-b]pyrrole-5-carbonyl)amino]-2-oxo-3,4-dihydroquinolin-1-yl]ethylidene]amino] ethyl carbonate

HRID 1247526Notes

Reaction equation

HRID 1247526 reaction equation
Cl[C:2]([O:4][CH2:5][CH3:6])=[O:3].[NH2:7]/[C:8](=[N:33]\[OH:34])/[CH2:9][N:10]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[CH2:13][CH:12]([NH:20][C:21]([C:23]2[NH:27][C:26]3[S:28][C:29]([Cl:31])=[CH:30][C:25]=3[CH:24]=2)=[O:22])[C:11]1=[O:32].C1COCC1.Cl>N1C=CC=CC=1.CCOC(C)=O>[NH2:7]/[C:8](=[N:33]\[O:34][C:2]([O:4][CH2:5][CH3:6])=[O:3])/[CH2:9][N:10]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[CH2:13][CH:12]([NH:20][C:21]([C:23]2[NH:27][C:26]3[S:28][C:29]([Cl:31])=[CH:30][C:25]=3[CH:24]=2)=[O:22])[C:11]1=[O:32]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 10928Ethyl chloroformateHCID 100249933,4-dihydro-2-quinolone (DHQ) derivative, 21

Product 1

HCID 21906825[(Z)-[1-amino-2-[3-[(2-chloro-6H-thieno[2,3-b]pyrrole-5-carbonyl)amino]-2-oxo-3,4-dihydroquinolin-1-yl]ethylidene]amino] ethyl carbonate

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

Ethyl chloroformate (60 μL, 0.63 mmol) was added to a suspension of N-{1-[(2Z)-2-amino-2-(hydroxyimino)ethyl]-2-oxo-1,2,3,4-tetrahydroquinolin-3-yl}-2-chloro-6H-thieno[2,3-b]pyrrole-5-carboxamide (Example 31; 200 mg, 0.48 mmol) in dry pyridine (1 mL) under an inert atmosphere then stirred heated to 100° C. for 30 minutes. On cooling THF (10 mL) and added followed by EtOAc (50 mL) and 1M HCl aq. (20 mL). The organic was separated and dried (Na2SO4), filtered and evaporated to give a clear orange oil. This was used in the next stage without characterization or purification.

Workup

  1. additionadded
  2. customThe organic was separated
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. customevaporated
  6. customto give a clear orange oil
  7. customThis was used in the next stage without characterization or purification

Sources & evidence

ORD record
ord-f6e23afea618497880cdb5b8f75521bd
Source dataset
uspto-grants-2006_10
Patent number
US07129249B2

Reaction notes

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