Sodium Bicarbonate → HCID 90338566, compound

HRID 1508786Notes

Reaction equation

Cl.Cl[C:3]1[CH:8]=[C:7]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([Cl:15])[CH:10]=2)[N:6]=[C:5]2[CH2:16][CH2:17][CH2:18][C:4]=12.[NH2:19][C:20]1[CH:25]=[CH:24][C:23]([N:26](C)[C:27](N)=O)=[CH:22][CH:21]=1.C(=O)(O)[O-].[Na+]>Cl.CN1C(=O)CCC1.O>[Cl:15][C:11]1[CH:10]=[C:9]([C:7]2[N:6]=[C:5]3[CH2:16][CH2:17][CH2:18][C:4]3=[C:3]([NH:19][C:20]3[CH:25]=[CH:24][C:23]([NH:26][CH3:27])=[CH:22][CH:21]=3)[CH:8]=2)[CH:14]=[CH:13][CH:12]=1

Participants

Conditions

Temperature: 140 °C

Procedure

A 10-mL microwave vial was charged with 4-chloro-2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridine hydrochloride (0.200 g, 0.67 mmol), 1-(4-aminophenyl)-1-methylurea (0.220 g, 1.33 mmol) and cone. HCl (2 drops) in NMP (5 mL). The resulting mixture was heated at 140° C. under microwave irradiation for 3 h. After this time, the reaction mixture was cooled, diluted with water (40 mL) and then saturated sodium bicarbonate was added until pH˜8. The resulting solid was isolated by filtration then purified by chromatography on silica using hexanes/ethyl acetate (10:0 to 0:10) as eluent to afford the title compound (0.071 g, 30%) as a colorless oil. MW=349.86. 1H NMR (CDCl3, 500 MHz) δ 7.83-7.80 (m, 1H), 7.68-7.63 (m, 1H), 7.28-7.26 (m, 2H), 7.10-7.06 (m, 2H), 6.85 (s, 1H), 6.67-6.62 (m, 2H), 5.55 (s, 1H), 3.76 (br s, 1H), 3.06 (t, J=7.5 Hz, 2H), 2.87 (s, 3H), 2.81 (t, J=7.5 Hz, 2H), 2.20 (quin, J=7.5 Hz, 2H); ESI MS m/z 350 [M+H]+.

Workup

temperatureAfter this time, the reaction mixture was cooled
customThe resulting solid was isolated by filtration
customthen purified by chromatography on silica

Sources & evidence

ORD record: ord-225b5d3169664a66a60982d09aa551f4
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09221843B2

Reaction notes

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