Chemical structures of GABA,<unk>  and two other gabapentinoids, gabapentin and phenibut.<unk>  is a GABA analogue that is a 3-substituted derivative as well as a γ-amino acid. Specifically,<unk>  is (S)-(+)-3-isobutyl-GABA.<unk>  also closely resembles the α-amino acids L-leucine and L-isoleucine, and this may be of greater relevance in relation to its pharmacodynamics than its structural similarity to GABA. Synthesis Chemical syntheses of<unk>  have been described.
Pregabalin
Imagabalin
Gabapentin
Naproxen
Nabilone
Nortriptyline
Trazodone
Hydrocodone