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. 2013 Feb 18;4(4):402–407. doi: 10.1021/ml300476v

Scheme 2. Synthesis of Fluorescent ρ1 GABAC Antagonists 12 and 13.

Scheme 2

Reagents and conditions: (a) 7-nitrobenz-2-oxa-1,3-diazol-4-yl chloride (NBD-Cl), K2CO3, DMF, room temperature for 24 h, 76%; (b) BODIPY N-succinimidyl ester, DIPEA, DMF, room temperature for 24 h, 72%.