Boron tribromide → HCID 67450619, compound

HRID 1853888Notes

Reaction equation

C[O:2][C:3]1[CH:12]=[CH:11][C:10]2[NH:9][C:8](=[O:13])[C:7]3[S:14][CH:15]=[CH:16][C:6]=3[C:5]=2[C:4]=1[C:17]1[CH:22]=[CH:21][C:20]([N:23]2[CH2:28][CH2:27][N:26]([S:29]([CH3:32])(=[O:31])=[O:30])[CH2:25][CH2:24]2)=[CH:19][CH:18]=1.BrB(Br)Br>>[OH:2][C:3]1[CH:12]=[CH:11][C:10]2[NH:9][C:8](=[O:13])[C:7]3[S:14][CH:15]=[CH:16][C:6]=3[C:5]=2[C:4]=1[C:17]1[CH:18]=[CH:19][C:20]([N:23]2[CH2:28][CH2:27][N:26]([S:29]([CH3:32])(=[O:31])=[O:30])[CH2:25][CH2:24]2)=[CH:21][CH:22]=1

Participants

Reactant 2

HCID 25134Boron tribromide

HCID 67447529HCID 67447529, compound

Product 1

HCID 67450619HCID 67450619, compoundYield 17%

Procedure

Following General Procedure F, 8-methoxy-9-{4-[4-(methylsulfonyl)piperazin-1-yl]phenyl}thieno[2,3-c]quinolin-4(5H)-one (32 mg, 0.068 mmol) was reacted with tribromoborane (1.0 mL) to afford the desired product (5.2 mg, 17%) as an off-white solid: 1H NMR (500 MHz, CD3OD) δ 7.58 (d, J=5.4 Hz, 1H), 7.37 (d, J=8.9 Hz, 1H), 7.20 (s, 4H), 7.15 (d, J=8.9 Hz, 1H), 6.16 (d, J=5.4 Hz, 1H), 3.44-3.43 (m, 8H), 2.92 (s, 3H); ESI MS m/z 456[C22H21N3O4S2+H]+; HPLC >99%, tR=10.47 min.

Sources & evidence

ORD record: ord-602654dee8b74bdf85e3279865dfcc7f
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08962648B2

Reaction notes

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