Boron tribromide → HCID 86689517, compound

HRID 1853841Notes

Reaction equation

[Cl:1][C:2]1[CH:17]=[C:16]([C:18]2[C:19]3[C:20]4[CH:34]=[CH:33][S:32][C:21]=4[C:22](=[O:31])[NH:23][C:24]=3[C:25]([CH3:30])=[CH:26][C:27]=2[O:28]C)[CH:15]=[CH:14][C:3]=1[CH2:4][CH2:5][NH:6]C(=O)OC(C)(C)C.BrB(Br)Br>>[ClH:1].[NH2:6][CH2:5][CH2:4][C:3]1[CH:14]=[CH:15][C:16]([C:18]2[C:19]3[C:20]4[CH:34]=[CH:33][S:32][C:21]=4[C:22](=[O:31])[NH:23][C:24]=3[C:25]([CH3:30])=[CH:26][C:27]=2[OH:28])=[CH:17][C:2]=1[Cl:1]

Participants

Reactant 2

HCID 25134Boron tribromide

HCID 67449870HCID 67449870, compound

Product 1

HCID 86689517HCID 86689517, compoundYield 102.8%

Procedure

Following General Procedure F, tert-butyl 2-chloro-4-(8-methoxy-6-methyl-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenethylcarbamate (120 mg, 0.24 mmol) was reacted with tribromoborane (1.0 M in methylene chloride, 1.45 mL, 1.45 mmol) to afford the desired product (52 mg, 57%) as a white solid: 1H NMR (500 MHz, MeOD) δ 7.64 (d, J=5.4 Hz, 1H), 7.54 (d, J=7.8 Hz, 1H), 7.37 (d, J=1.4 Hz, 1H), 7.23 (dd, J=7.7, 1.4 Hz, 1H), 7.08 (s, 1H), 6.19 (d, J=5.4 Hz, 1H), 3.42-3.14 (m, 4H), 2.56 (s, 3H); ESI MS m/z 385 [C20H17ClN2O2S+H]+; HPLC 98.2% (AUC), tR=8.55 min.

Sources & evidence

ORD record: ord-d76980d934a348e1825ef12bc9b255bb
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08962648B2

Reaction notes

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