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Acetic Acid → 2-[4-[[2-(5-chloro-2-thienyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl]amino]phenyl]acetic acid

HRID 1508697
Notes
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Reaction equation

HRID 1508697 reaction equation
Cl[C:2]1[C:3]2[CH2:16][CH2:15][CH2:14][C:4]=2[N:5]=[C:6]([C:8]2[S:9][C:10]([Cl:13])=[CH:11][CH:12]=2)[N:7]=1.[NH2:17][C:18]1[CH:23]=[CH:22][C:21]([CH2:24][C:25]([OH:27])=[O:26])=[CH:20][CH:19]=1.CC(O)=O.C(OCC)(=O)C>Cl.O>[Cl:13][C:10]1[S:9][C:8]([C:6]2[N:7]=[C:2]([NH:17][C:18]3[CH:19]=[CH:20][C:21]([CH2:24][C:25]([OH:27])=[O:26])=[CH:22][CH:23]=3)[C:3]3[CH2:16][CH2:15][CH2:14][C:4]=3[N:5]=2)=[CH:12][CH:11]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 176Acetic AcidHCID 8857Ethyl AcetateHCID 145334-Aminophenylacetic acidHCID 613820204-chloro-2-(5-chlorothiophen-2-yl)-5H,6H,7H-cyclopenta[d]pyrimidine

Product 1

HCID 742209102-[4-[[2-(5-chloro-2-thienyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl]amino]phenyl]acetic acidYield 78%

Reagents, catalysts & solvents

2
HCID 313Hydrochloric AcidCatalystHCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

An 18-mL vial was charged with 4-chloro-2-(5-chloro-2-thienyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidine (30 mg, 0.11 mmol, 1.1 eq.), 2-(4-aminophenyl)acetic acid (15 mg, 0.1 mmol, 1 eq.), and AcOH (1 ml). To the mixture was added HCl (4 N in dioxane, 5 drops) The resulting mixture was stirred at 100° C. for 2 hr. After cooling to rt, the reaction mixture was diluted with addition of water. The precipitate was collected by filtration and washed with water followed by dichloromethane, The product thus obtained (30 mg, 78% yield) was further treated with ethyl acetate to afford 2-[4-[[2-(5-chloro-2-thienyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl]amino]phenyl]acetic acid (7.2 mg). MW=385.87. 1H NMR (DMSO-D6, 360 MHz) δ 9.22 (brs, 1H), 7.76 (d, J=3.9 Hz, 1H), 7.70 (d, J=8.2 Hz, 2H), 7.26 (d, J=8.2 Hz, 2H), 7.21 (d, J=3.9 Hz, 1H), 3.55 (s, 2H), 2.87 (m, 4H), 2.09 (m, 2H).

Workup

  1. temperatureAfter cooling to rt
  2. filtrationThe precipitate was collected by filtration
  3. washwashed with water
  4. customThe product thus obtained (30 mg, 78% yield)

Sources & evidence

ORD record
ord-19689104ccf44ea58e3109fffd165ba6
Source dataset
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09221843B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes