(S)-(-)-HA 966 ((-)-HA 966), a γ-Hydroxybutyrate-like agent, is weakly active as an NMDA-receptor antagonist. (S)-(-)-HA 966 possesses muscle relaxant action and prevents enhanced mesocorticolimbic dopamine metabolism and behavioral correlates of restraint stress, conditioned fear^[1][2].

On cultured cortical neurones (+)-HA-966 inhibits glycine-potentiated NMDA responses with an IC₅₀=13 μM compared with (-)-HA-966 (IC₅₀=708 μM)^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

(S)-(-)-HA 966 ((-)-HA 966; 3 and 5 mg/kg; i.p.) prevents restraint stress-induced dopamine utilization in both the medial prefrontal cortex and nucleus accumbens. (S)-(-)-HA 966 suppresses fear-induced behaviors: immobility and defecation^[1].
(S)-(-)-HA 966 (3 mg/kg; i.p.) prevents locomotor sensitization without altering the acute motoric response elicited by cocaine^[1].
(S)-(-)-HA 966 (5 mg/kg; i.p.) blocks acute cocaine-induced locomotion but resulted in sedation^[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

116.12

C₄H₈N₂O₂

111821-58-0

固體

Off-white to light yellow

Room temperature in continental US; may vary elsewhere.

• [1]. B A Morrow, et al. (S)-(-)-HA-966, a gamma-hydroxybutyrate-like agent, prevents enhanced mesocorticolimbic dopamine metabolism and behavioral correlates of restraint stress, conditioned fear and cocaine sensitization. J Pharmacol Exp Ther. 1997 Nov;283(2):712-21.  [Content Brief]

  [2]. L Singh, et al. Enantiomers of HA-966 (3-amino-1-hydroxypyrrolid-2-one) exhibit distinct central nervous system effects: (+)-HA-966 is a selective glycine/N-methyl-D-aspartate receptor antagonist, but (-)-HA-966 is a potent gamma-butyrolactone-like sedative. Proc Natl Acad Sci U S A. 1990 Jan;87(1):347-51.  [Content Brief]