Sodium Carbonate → Ethyl 6-chloro-7-(4-(6-(4-chlorophenyl)pyridin-2-ylcarbamoyl)phenoxy)chroman-4-carboxylate

HRID 1626507Notes

Reaction equation

Br[C:2]1[N:7]=[C:6]([NH:8][C:9]([C:11]2[CH:33]=[CH:32][C:14]([O:15][C:16]3[CH:25]=[C:24]4[C:19]([CH:20]([C:26]([O:28][CH2:29][CH3:30])=[O:27])[CH2:21][CH2:22][O:23]4)=[CH:18][C:17]=3[Cl:31])=[CH:13][CH:12]=2)=[O:10])[CH:5]=[CH:4][CH:3]=1.[Cl:34][C:35]1[CH:40]=[CH:39][C:38](B(O)O)=[CH:37][CH:36]=1.C([O-])([O-])=O.[Na+].[Na+]>C1(C)C=CC=CC=1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:31][C:17]1[CH:18]=[C:19]2[C:24](=[CH:25][C:16]=1[O:15][C:14]1[CH:32]=[CH:33][C:11]([C:9](=[O:10])[NH:8][C:6]3[CH:5]=[CH:4][CH:3]=[C:2]([C:38]4[CH:39]=[CH:40][C:35]([Cl:34])=[CH:36][CH:37]=4)[N:7]=3)=[CH:12][CH:13]=1)[O:23][CH2:22][CH2:21][CH:20]2[C:26]([O:28][CH2:29][CH3:30])=[O:27]

Participants

Conditions

Temperature: 100 °C

Procedure

Ethyl 7-(4-(6-bromopyridin-2-ylcarbamoyl)phenoxy)-6-chlorochroman-4-carboxylate (50 mg, 0.094 mmol), 4-chlorophenylboronic acid (59 mg, 0.38 mmol), Na2CO3 (30 mg, 0.28 mmol) and Pd(PPh3)4 (11 mg, 0.0094 mmol) were place in a 1 mL vial and diluted with toluene (800 μL) and water (80 μL). The vial was purged with argon, sealed and heated to 100° C. After stirring for 12 hours, the reaction was cooled and loaded directly onto a biotage 25 cartridge eluting with 5% ethyl acetate/hexanes to 60% ethyl acetate/hexanes to yield ethyl 6-chloro-7-(4-(6-(4-chlorophenyl)pyridin-2-ylcarbamoyl)phenoxy)chroman-4-carboxylate (50 mg, 0.089 mmol, 94% yield).

Workup

customThe vial was purged with argon
customsealed
temperaturethe reaction was cooled
washeluting with 5% ethyl acetate/hexanes to 60% ethyl acetate/hexanes

Sources & evidence

ORD record: ord-299b978771814e18aaf459213d19fb91
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08785445B2

Reaction notes

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