The methanol and ethanol solvates of 4-glutarato- N , N -diiso-propyl-tryptamine.

The solid-state structures of two solvated forms of 4-glutarato- N , N -diiso-propyl-tryptamine were determined by single-crystal X-ray diffraction, namely, 5-[(3-{2-[bis(propan-2-yl)azaniumyl]ethyl}-1 H -indol-4-yl)oxy]-5-oxopentanoate meth-anol monosolvate, C 21 H 30 N 2 O 4 ·CH 3 OH, and the analogous ethanol monosolvate, C 21 H 30 N 2 O 4 ·C 2 H 6 O. In both compounds, the 4-glutarato- N , N -di-iso--pro-pyl-tryptamine exists as a zwitterion with a protonated tertiary ammonium and a deprotonated glutarato carboxyl-ate. The tryptamine zwitterions and alcohol solvates in both structures combine to produce near identical hydrogen-bonding networks, with N-H⋯O and O-H⋯O hydrogen bonds joining the mol-ecules together in two-dimensional networks parallel to the (100) plane.