Diisopropylethylamine → tert-butyl 1-((7-fluoro-1,1-dimethyl-2,3-dihydro-1H-inden-5-yl)carbamoyl)-6-(methoxymethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

温度

60 °C

T3P (8.24 mL, 14.00 mmol) was added to a mixture of 2-(tert-butoxycarbonyl)-6-(methoxymethyl)-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid (1.5 g, 4.67 mmol), 7-fluoro-1,1-dimethyl-2,3-dihydro-1H-inden-5-amine (0.837 g, 4.67 mmol), DIEA (4.08 mL, 23.34 mmol), DMAP (0.570 g, 4.67 mmol) and ethyl acetate (5 mL) at 60° C., and the mixture was stirred at 60° C. for 2 days. To the reaction mixture was added ethyl acetate, and the mixture was washed with water and brine, and dried over magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 32→40% ethyl acetate/hexane) to give tert-butyl 1-((7-fluoro-1,1-dimethyl-2,3-dihydro-1H-inden-5-yl)carbamoyl)-6-(methoxymethyl)-3,4-dihydroisoquinoline-2 (1H)-carboxylate (1.600 g, 3.32 mmol, 71.0%) as a white solid.

1. washthe mixture was washed with water and brine
2. dry with materialdried over magnesium sulfate
3. customthe solvent was evaporated under reduced pressure
4. customThe obtained residue was purified by silica gel column chromatography (solvent gradient; 32→40% ethyl acetate/hexane)

ORDレコード

ord-967189d9f70f4e7e83858ea6d426e2d2

出典データセット

uspto-grants-2016_06

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US09365520B2