Diisopropylethylamine → 8-Chloro-1-cyclopropyl-n-(2,4-dichlorobenzyl)-6-fluoro-4-oxo-7-(3-oxo-2,8-diazaspiro[4.5]dec-8-yl)-1,4-dihydroquinoline-3-carboxamide

Participants

Reaction Steps

60 mg (0.13 mmol) of the compound of Example 70A and 37 mg (0.20 mmol) of 3-oxo-2,8-diazaspiro[4,5]decane hydrochloride (Example 13A) are stirred with 91 μl (0.52 mmol) of N,N-diisopropylethylamine in 2 ml of DMSO at 120° C. for 2 days. After cooling, the entire reaction mixture is separated by preparative HPLC (method 5). Concentration of the appropriate fractions on a rotary evaporator and drying under high vacuum give 20 mg (26% of theory) of the title compound.

Provenance & Evidence