Water → HCID 11684124, compound

HRID 2425093Notes

Reaction equation

HRID 2425093 reaction equation
[CH:1]([O-])=[O:2].[Na+].[CH3:5][O:6][C:7]([C:9]1[CH:10]=[C:11]([CH3:33])[C:12]2[O:18][C:17]3[C:19]([Cl:29])=[CH:20][C:21]([N:23]4[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]4)=[CH:22][C:16]=3[CH2:15][S:14](=[O:31])(=[O:30])[C:13]=2[CH:32]=1)=[O:8].O>C(O)=O>[CH3:5][O:6][C:7]([C:9]1[CH:10]=[C:11]([CH3:33])[C:12]2[O:18][C:17]3[C:19]([Cl:29])=[CH:20][C:21]([N:23]4[CH2:24][CH2:25][N:26]([CH:1]=[O:2])[CH2:27][CH2:28]4)=[CH:22][C:16]=3[CH2:15][S:14](=[O:30])(=[O:31])[C:13]=2[CH:32]=1)=[O:8]

Participants

5

Reactant 3

HCID 962WaterHCID 2723810Sodium FormateHCID 115410724-Chloro-6-methyl-10,10-dioxo-2-piperazin-1-yl-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]cyclo heptene-8-carboxylic acid methyl ester

Product 1

HCID 11684124HCID 11684124, compound

Reagents, catalysts & solvents 1

HCID 284Formic AcidSolvent

Conditions

Temperature
90 °C

Procedure

Sodium formate (0.1 g, 1.37 mmol) was added to a solution of 4-chloro-6-methyl-10,10-dioxo-2-piperazin-1-yl-10,11-dihydro-5-oxa-10lambda*6*-thia-dibenzo[a,d]cycloheptene-8-carboxylic acid methyl ester (free base of example 16, 0.3 g, 0.68 mmol) in formic acid (85%, 5 mL), and stirred at 90° C. for 15 h. The reaction mixture was diluted using water (10 mL), extracted using ethyl acetate, washed with water and brine. Solvent was removed and the crude product was purified by column chromatography (silica gel, 1.5% methanol in chloroform) to obtain the title compound. Yield: 0.11 g, (35%); 1H NMR (DMSO-d6, 300 MHz): δ 2.62 (s, 3H, CH3), 3.17-3.24 (m, 4H, 2CH2), 3.47 (s, 4H, 2CH2), 3.85 (s, 3H, OCH3), 5.15 (s, 2H, CH2), 7.13 (s, 1H, Ar), 7.17 (s, 1H, Ar), 8.06 (s, 1H, CHO), 8.08 (t, 1H, Ar), 8.14 (d, 1H, Ar); MS: m/e (ES+) 465 (M+1); analysis: C21H21ClN2O6S.0.5H2O requires C, 53.23; H, 4.64; N, 5.91; Cl, 7.49; S, 6.75. found: C, 53.82; H, 4.48; N, 5.42; Cl, 8.07; S, 7.17%.

Workup

  1. additionThe reaction mixture was diluted
  2. extractionextracted
  3. washwashed with water and brine
  4. customSolvent was removed
  5. customthe crude product was purified by column chromatography (silica gel, 1.5% methanol in chloroform)

Sources & evidence

ORD record
ord-07ae89a756f1487f89845f25b86291d8
Source dataset
uspto-grants-2011_06
Patent number
US07964631B2

Reaction notes

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