Boron tribromide → HCID 86689535, compound

HRID 1853855Notes

Reaction equation

[Cl:1][C:2]1[C:11]2[NH:10][C:9](=[O:12])[C:8]3[S:13][CH:14]=[CH:15][C:7]=3[C:6]=2[C:5]([C:16]2[CH:21]=[CH:20][C:19]([CH2:22][CH:23]([NH:25]C(=O)OC(C)(C)C)[CH3:24])=[CH:18][CH:17]=2)=[C:4]([O:33]C)[CH:3]=1.B(Br)(Br)Br>>[ClH:1].[NH2:25][CH:23]([CH3:24])[CH2:22][C:19]1[CH:20]=[CH:21][C:16]([C:5]2[C:6]3[C:7]4[CH:15]=[CH:14][S:13][C:8]=4[C:9](=[O:12])[NH:10][C:11]=3[C:2]([Cl:1])=[CH:3][C:4]=2[OH:33])=[CH:17][CH:18]=1

Participants

Reactant 2

HCID 25134Boron tribromide

HCID 86689536HCID 86689536, compound

Product 1

HCID 86689535HCID 86689535, compoundYield 120.8%

Procedure

Following General Procedure F, a tert-butyl 1-(4-(6-chloro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenyl)propan-2-ylcarbamate (55 mg, 0.11 mmol) was reacted with BBr3 (1.0 M in CH2Cl2, 2 mL, 2 mmol) to afford the desired product (28 mg, 66%) as a white solid: 1H NMR (500 MHz, CD3OD) δ 7.61 (d, J=5.4 Hz, 1H), 7.47 (dd, J=22.8, 7.8 Hz, 2H), 7.36-7.29 (m, 3H), 6.08 (d, J=5.4 Hz, 1H), 3.65 (dd, J=13.7, 6.9 Hz, 1H), 3.05 (ddd, J=34.9, 13.6, 7.3 Hz, 2H), 1.39 (d, J=6.6 Hz, 3H): ESI MS m/z 385 [C20H17ClN2O2S+H]+; HPLC >99% (AUC), tR=8.77 min.

Sources & evidence

ORD record: ord-b28a874f6749450aa42cc70a47fc2b31
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08962648B2

Reaction notes

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