3-Fluorobenzoic Acid → N-biphenyl-4-yl-3-[4-(3-fluoro-benzoyl)-piperazin-1-yl]-3-oxo-propionamide

HRID 1665606Notes

Reaction equation

C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.[F:20][C:21]1[CH:22]=[C:23]([CH:27]=[CH:28][CH:29]=1)[C:24]([OH:26])=O.CCN=C=NCCCN(C)C.Cl.Cl.[C:43]1([C:61]2[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=2)[CH:48]=[CH:47][C:46]([NH:49][C:50](=[O:60])[CH2:51][C:52](=[O:59])[N:53]2[CH2:58][CH2:57][NH:56][CH2:55][CH2:54]2)=[CH:45][CH:44]=1>CN(C=O)C.O>[C:43]1([C:61]2[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=2)[CH:44]=[CH:45][C:46]([NH:49][C:50](=[O:60])[CH2:51][C:52]([N:53]2[CH2:54][CH2:55][N:56]([C:24](=[O:26])[C:23]3[CH:27]=[CH:28][CH:29]=[C:21]([F:20])[CH:22]=3)[CH2:57][CH2:58]2)=[O:59])=[CH:47][CH:48]=1

Participants

Conditions

Temperature: 10 °C

Procedure

HOBt (34 mg, 0.25 mmol) and DIPEA (67.9 mg, 0.51 mmol) were added to a stirred solution of 3-fluorobenzoic acid (29 mg, 0.21 mmol) in DMF (1.5 mL). The reaction mixture was cooled to 10° C. and EDCI.HCl (48 mg, 0.25 mmol) followed by N-biphenyl-4-yl-3-oxo-3-piperazin-1-yl-propionamide hydrochloride (75 mg, 0.2 mmol) were added. The reaction mixture was stirred at room temperature overnight then diluted with water. The resulting precipitate was filtered and dried to afford 91 mg (98%) of N-biphenyl-4-yl-3-[4-(3-fluoro-benzoyl)-piperazin-1-yl]-3-oxo-propionamide. LCMS: 446.18 (M+1)+ 98.1%, 1H NMR: (CDCl3): δ 9.6 (s, 1H), 7.6 (m, 6H), 7.46 (m, 3H), 7.34 (m, 1H), 7.16 (m, 3H), 3.7 (bs, 7H), 3.54 (s, 3H).

Workup

additionwere added
filtrationThe resulting precipitate was filtered
customdried

Sources & evidence

ORD record: ord-1e860927c7a649f0bb7e200a103e7228
Source dataset: uspto-grants-2011_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08039463B2

Reaction notes

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