Tetrahydrofuran → N-[3,5-Dichloro-4-(3-cyclopropylmethanesulfonyl-4-hydroxy-phenoxy)-phenyl]-malonamic acid ethyl ester

HRID 584031Notes

Reaction equation

[NH2:1][C:2]1[CH:22]=[C:21]([Cl:23])[C:5]([O:6][C:7]2[CH:12]=[CH:11][C:10]([OH:13])=[C:9]([S:14]([CH2:17][CH:18]3[CH2:20][CH2:19]3)(=[O:16])=[O:15])[CH:8]=2)=[C:4]([Cl:24])[CH:3]=1.C(N(CC)CC)C.C([CH:34]([C:38](Cl)=[O:39])[C:35](Cl)=[O:36])C.C1C[O:44][CH2:43][CH2:42]1>>[CH2:43]([O:44][C:38](=[O:39])[CH2:34][C:35]([NH:1][C:2]1[CH:3]=[C:4]([Cl:24])[C:5]([O:6][C:7]2[CH:12]=[CH:11][C:10]([OH:13])=[C:9]([S:14]([CH2:17][CH:18]3[CH2:20][CH2:19]3)(=[O:16])=[O:15])[CH:8]=2)=[C:21]([Cl:23])[CH:22]=1)=[O:36])[CH3:42]

Participants

Reactant 4

HCID 8028Tetrahydrofuran

HCID 8471Triethylamine

HCID 109209242-Ethylpropanedioyl dichloride

HCID 692599874-(4-Amino-2,6-dichloro-phenoxy)-2-cyclopropylmethanesulfonyl-phenol

Product 1

HCID 69260451N-[3,5-Dichloro-4-(3-cyclopropylmethanesulfonyl-4-hydroxy-phenoxy)-phenyl]-malonamic acid ethyl ester

Procedure

To a solution of 4-(4-amino-2,6-dichloro-phenoxy)-2-cyclopropylmethane-sulfonyl-phenol (43 mg, 0.11 mmol) in THF (2 mL) was added triethylamine (17 μL, 0.12 mmol) and ethyl malonyl chloride (14 μL, 0.11 mmol). The resulting mixture was stirred at RT for 3 h. The solution was concentrated and the residue was purified by preparative TLC (2% MeOH in CH2Cl2) to give the title compound of Step F (42 mg). MS (APCl−) Calc.: 501.0. Found: 500.3 (M−1).

Workup

concentrationThe solution was concentrated
customthe residue was purified by preparative TLC (2% MeOH in CH2Cl2)

Sources & evidence

ORD record: ord-9dedfad2e551423a8acfc5173ebd517b
Source dataset: uspto-grants-2005_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06924310B2

Reaction notes

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