Water → 4-Chloro-6-methyl-2-[2-(4-methyl-piperazin-1-yl)ethylamino]-10,10-dioxo-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

HRID 1927468Notes

Reaction equation

HRID 1927468 reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1.[CH3:8][O:9][C:10]([C:12]1[CH:13]=[C:14]([CH3:34])[C:15]2[O:21][C:20]3[C:22]([Cl:30])=[CH:23][C:24]([NH:26][CH2:27][CH2:28]Cl)=[CH:25][C:19]=3[CH2:18][S:17](=[O:32])(=[O:31])[C:16]=2[CH:33]=1)=[O:11].O>CN(C=O)C>[CH3:8][O:9][C:10]([C:12]1[CH:13]=[C:14]([CH3:34])[C:15]2[O:21][C:20]3[C:22]([Cl:30])=[CH:23][C:24]([NH:26][CH2:27][CH2:28][N:5]4[CH2:6][CH2:7][N:2]([CH3:1])[CH2:3][CH2:4]4)=[CH:25][C:19]=3[CH2:18][S:17](=[O:32])(=[O:31])[C:16]=2[CH:33]=1)=[O:11]

Participants

5

Reactant 3

HCID 962WaterHCID 531671-MethylpiperazineHCID 1317284464-Chloro-2-(2-chloro-ethylamino)-6-methyl-10,10-dioxo-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]-cycloheptene-8-carboxylic acid methyl ester

Product 1

HCID 1317284504-Chloro-6-methyl-2-[2-(4-methyl-piperazin-1-yl)ethylamino]-10,10-dioxo-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
110 °C

Procedure

1-Methyl-piperazine (0.191 g, 1.91 mol) was added to a solution of Example 56k (0.5 g, 1.16 mmol) in dry DMF (10 mL) and stirred at 110° C. for 2 h. The reaction mixture was treated with water and extracted with ethyl acetate. The organic layer was washed with water, brine, dried, concentrated and purified using flash chromatography (silica gel, methanol/chloroform) to obtain the title compound as a white solid. Yield: 0.350 g, (60.97%); 1H NMR (DMSO-d6): δ 2.2 (s, 3H, CH3), 2.5-2.60 (m, 10H, 5CH2), 2.70 (s, 3H, CH3), 3.10 (d, 2H, CH2), 3.90 (s, 3H, CH3), 5.10 (s, 2H, CH2), 6.7 (s, 2H, Ar), 8.01 (s, 1H, Ar), 8.20 (s, 1H, Ar); MS: m/e (ES+) 495 (M+1).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with water, brine
  3. customdried
  4. concentrationconcentrated
  5. custompurified

Sources & evidence

ORD record
ord-cbab729bb0f14a22bf7419e77b85c27c
Source dataset
uspto-grants-2012_05
Patent number
US08183234B2

Reaction notes

Loading…