Acetonitrile → (S)-tert-butyl (1-(7-fluoro-2-(2-(methylthio)phenyl)quinolin-3-yl)ethyl)carbamate

HRID 1019797Notes

Reaction equation

Cl[C:2]1[C:11]([C@@H:12]([NH:14][C:15](=[O:21])[O:16][C:17]([CH3:20])([CH3:19])[CH3:18])[CH3:13])=[CH:10][C:9]2[C:4](=[CH:5][C:6]([F:22])=[CH:7][CH:8]=2)[N:3]=1.[CH3:23][S:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=1B(O)O.C([O-])([O-])=O.[Na+].[Na+].CC#N>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[F:22][C:6]1[CH:5]=[C:4]2[C:9]([CH:10]=[C:11]([C@@H:12]([NH:14][C:15](=[O:21])[O:16][C:17]([CH3:20])([CH3:19])[CH3:18])[CH3:13])[C:2]([C:26]3[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=3[S:24][CH3:23])=[N:3]2)=[CH:8][CH:7]=1

Participants

Conditions

Temperature: 85 °C

Procedure

A mixture of (S)-tert-butyl (1-(2-chloro-7-fluoroquinolin-3-yl)ethyl)carbamate (382 mg, 1.2 mmol), 2-(methylthio)phenylboronic acid (257 mg, 1.3 eq), Na2CO3 (623 mg, 5.0 eq), Pd(PPh3)4 (93 mg, 5%), MeCN (9 mL) and water (3 mL) was heated to 85° C. under N2 overnight. After cooling to rt, the reaction was partitioned between EtOAc (10 mL) and water (5 mL). The organic layer was separated, washed, dried and concentrated. The residue was purified by column chromatography on silica gel to give a white solid (S)-tert-butyl (1-(7-fluoro-2-(2-(methylthio)phenyl)quinolin-3-yl)ethyl)carbamate (460 mg, 94.8%). Mass Spectrum (ESI) m/e=413 (M+1).

Workup

temperatureAfter cooling to rt
customthe reaction was partitioned between EtOAc (10 mL) and water (5 mL)
customThe organic layer was separated
washwashed
customdried
concentrationconcentrated
customThe residue was purified by column chromatography on silica gel

Sources & evidence

ORD record: ord-80cf5e05b2524600afb59880f76e6d67
Source dataset: uspto-grants-2014_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08716290B2

Reaction notes

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