5-Chlorobenzoxazole is a heterocyclic building block that commonly used in oragnic synthesis. Recently it is typically employed as an intermediate in the preparation of a dual orexin hypocretin receptor (OXR) antagonist for the treatment of insomnia.
Discovery and development of orexin receptor antagonists as therapeutics for insomnia. 
Effects of a newly developed potent orexin-2 receptor-selective antagonist, compound 1 m, on sleep/wakefulness states in mice. 
Suvorexant, a dual orexin receptor antagonist for the management of insomnia. 
Suvorexant, an orexin/hypocretin receptor antagonist, attenuates motivational and hedonic properties of cocaine. 
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NONH for all modes of transport
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