Potassium Phosphate, Tribasic → 4-[4-Fluoro-2-methoxy-5-(methylsulfonylmethyl)phenyl]-2-methyl-6-(1-methylpyrazol-4-yl)isoquinolin-1-one

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	1-Bromo-4-fluoro-2-methoxy-5-(methylsulfonylmethyl)benzene	HCID 118022541	—
Reactant	2-Methyl-6-(1-methylpyrazol-4-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-1-one	HCID 123751349	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	1,4-Dioxane	HCID 31275	—
Product	4-[4-Fluoro-2-methoxy-5-(methylsulfonylmethyl)phenyl]-2-methyl-6-(1-methylpyrazol-4-yl)isoquinolin-1-one	HCID 118021619	19.3%

Reaction Steps

1-Bromo-4-fluoro-2-methoxy-5-(methylsulfonylmethyl)benzene (34.0 mg, 0.114 mmol), the title compound of Example 46, step 2 (50.0 mg, 0.137 mmol), Pd(dppf)Cl2 (20.0 mg, 0.027 mmol) and 1 M aqueous K3PO4 (0.47 mL, 0.47 mmol) in dioxane (3.0 mL) were microwaved at 100° C. for 40 min. Preparative HPLC gave the title compound (10.0 mg, 18%) as a light yellow solid. 1H NMR: (CDCl3, 400 MHz) δ 8.47 (d, J=8.0 Hz, 1H), 7.74 (s, 1H), 7.73 (s, 1H), 7.60 (d, J=8.4 Hz, 1H), 7.42 (d, J=8.4 Hz, 1H), 7.27 (s, 1H), 7.05 (s, 1H), 6.85 (d, J=12.0 Hz, 1H), 4.32 (d, J=6.4 Hz, 2H), 3.93 (s, 3H), 3.77 (s, 3H), 3.64 (s, 3H), 2.93 (s, 3H). LCMS: 456.1 (M+H)+.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09034900B2
Source dataset	uspto-grants-2015_05
ORD ID	ord-5790adb35d964caaace753548006fd7f
Source note	uspto-grants-2015_05