Isobutyraldehyde → HCID 10884258, compound

Participants

Reaction Steps

To a solution of N4-3-[4(3-aminopropyl)piperazine]propyl-7-chloroquinolin-4-amine (Intermediate of example 12) (150 mg, 0.41 mmol) in CH2C2 (4 mL) isobutyraldehyde (62 μL, 0.46 mmol), triethylamine (26 μL, 0.16 mmol) and 3 Å molecular sieves are added. The reaction media is stirred for 3 h and cooled before NaBH4 (78 mg, 2.05 mmol) is added portionwise over 30 min. Stirring is left for 1.5 h, water (10 mL) is added and the media is filtered. Compound is extracted with CH2Cl2 (3×20 mL). Combined organic layers are dried over MgSO4. Crude compound is purified by thick-layer chromatography (CH2Cl2/MeOH/NH4OH:90/10/1.4).

Provenance & Evidence