6-[4-[2-[[(2S)-3-(9H-carbazol-4-yloxy)-2-hydroxypropyl]amino]-2-methylpropyl]phenoxy]pyridine-3-carboxamide hydrochloride 6-[4-[2-[[(2S)-3-(9H-carbazol-4-yloxy)-2-hydroxy-propyl]amino]-2-methyl-propyl]phenoxy]pyridine-3-carboxamide hydrochloride 6-[4-[2-[[(2S)-3-(9H-carbazol-4-yloxy)-2-hydroxypropyl]amino]-2-methylpropyl]phenoxy]-3-pyridinecarboxamide hydrochloride 6-[4-[2-[[(2S)-3-(9H-carbazol-4-yloxy)-2-hydroxy-propyl]amino]-2-methyl-propyl]phenoxy]nicotinamide hydrochloride