Hydrochloric Acid → HCID 86756018, compound

Participants

Reaction Steps

To an ice-cold solution of cis-5-[(3,5-bis-trifluoromethyl-benzyl)-methoxycarbonyl-amino]-7-methyl-2,3,6,7-tetrahydro-5H-pyrrolo[3,2-g]quinoline-1,8-dicarboxylic acid 1-tert-butyl ester 8-ethyl ester (Example 11) (200 mg) in 10 ml anhydrous dioxane was added 4M HCl in dioxane (15 ml) and the resulting solution was stirred for 18 h at room temperature. The solution was concentrated in vacuo. The residue was diluted with dichloromethane and washed twice with a saturated sodium bicarbonate solution. The organic phase was dried (MgSO4), filtered and concentrated. The crude product was chromatographed (50% ethyl acetate:hexane) to afford the title product (100 mg). MS m/z 559.3 (M+); 1H NMR (CDCl3) δ1.1 (d, 3H), 3.0 (t, 2H), 3.6 (t, 2H), 3.8 (s, 3H), 6.6 (s, 1H), 6.9 (s, 1H).

Provenance & Evidence