Cesium carbonate → 2,6-dichloro-4-cyano-N-(2-(pyrimidin-4-ylamino)pyridin-4-yl)benzamide

HRID 449900Notes

Reaction equation

Br[C:2]1[CH:7]=[C:6]([NH:8][C:9](=[O:20])[C:10]2[C:15]([Cl:16])=[CH:14][C:13]([C:17]#[N:18])=[CH:12][C:11]=2[Cl:19])[CH:5]=[CH:4][N:3]=1.[N:21]1[CH:26]=[CH:25][C:24]([NH2:27])=[N:23][CH:22]=1.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.C([O-])([O-])=O.[Cs+].[Cs+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[Cl:19][C:11]1[CH:12]=[C:13]([C:17]#[N:18])[CH:14]=[C:15]([Cl:16])[C:10]=1[C:9]([NH:8][C:6]1[CH:5]=[CH:4][N:3]=[C:2]([NH:27][C:24]2[CH:25]=[CH:26][N:21]=[CH:22][N:23]=2)[CH:7]=1)=[O:20]

Participants

Conditions

Temperature: 140 °C

Procedure

A mixture of N-(2-bromopyridin-4-yl)-2,6-dichloro-4-cyanobenzamide (74 mg, 0.20 mmol), pyrimidin-4-amine (38 mg, 0.40 mmol), Pd2(dba)3 (18 mg, 0.020 mmol), Xantphos (23 mg, 0.040 mmol), Cs2CO3 (131 mg, 0.40 mmol), dioxane (1.2 mL) was heated to 140° C. for 1 hour in a microwave reactor under nitrogen atmosphere. The mixture was filtered through Celite and concentrated under reduced pressure. The residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min) to afford the desired product (50 mg, yield: 65%). 1H NMR (500 MHz, MeOH-d4): δ 8.68 (s, 1H), 8.36 (d, J=5.5 Hz, 1H), 8.27 (d, J=5.5 Hz, 1H), 8.19 (s, 1H), 8.00 (s, 2H), 7.71 (d, J=5.5 Hz, 1H), 7.36 (m, 1H). LC-MS (ESI) m/z: 385.0 [M+H+].

Workup

filtrationThe mixture was filtered through Celite
concentrationconcentrated under reduced pressure
customThe residue was purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min)

Sources & evidence

ORD record: ord-a33df971ddd5497e9825ccbfd7f18962
Source dataset: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08486950B2

Reaction notes

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