Acetic Acid → HCID 86755976, compound

To a solution of cis-4-amino-2-methyl-2,3,4,6,7,8-hexahydro-cyclopenta[g]quinoline-1-carboxylic acid ethyl ester (Example 3) (0.35 g, 1.28 mmol) in anhydrous 1,2-dichloroethane (50 mL) was added acetic acid (0.73 mL, 1.28 mmol), followed by 3,5-bis(trifluoromethyl)benzaldehyde (0.21 mL, 1.28 mmol) and sodium triacetoxyborohydride (0.406 g, 1.92 mmol). The reaction was stirred at room temperature for 18 h. The reaction mixture was then diluted with chloroform and washed with 1N NaOH. The organic layer was separated, dried over magnesium sulfate, filtered and concentrated in vacuo. Purification by silica gel chromatography using 10% ethyl acetate/hexanes as eluent afforded the title compound (approximately 300 mg). 1H NMR (CDCl3) δ1.1 (d, 3H), 1.3 (t, 3H), 2.6 (m, 1H), 3.6 (dd, 1H), 4.5 (m, 1H), 7.30 (s, 1H), 7.35 (s, 1H), 7.8 (s, 1H), 8.0 (s, 2H).

1. washwashed with 1N NaOH
2. customThe organic layer was separated
3. dry with materialdried over magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customPurification by silica gel chromatography

ORD record

ord-7a33a6955e5646a7938f226f3f11dd4c

Source dataset

uspto-grants-2001_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06310075B1