Aza-Michael Addition, 4,5-dihalo-1H-pyrrole-2-carbonitriles, α,β-unsaturated aldehydes, 4,5-dihalo-1-(1-substituted-3-hydroxypropyl)-1H-pyrrole-2-carbonitrile, (8α,9S)-6′-Methoxycinchonan-9-amine, Quinine Derivative