1276666-16-0

Basic information

• Product Name: C₁₃H₁₆ClN₃O*C₁₈H₁₄O₈
• Synonyms: C₁₃H₁₆ClN₃O*C₁₈H₁₄O₈
• CAS NO: 1276666-16-0
• Molecular Weight: 624.047
• Mol File: 1276666-16-0.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: C₁₃H₁₆ClN₃O*C₁₈H₁₄O₈(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₃H₁₆ClN₃O*C₁₈H₁₄O₈(1276666-16-0)
• EPA Substance Registry System: C₁₃H₁₆ClN₃O*C₁₈H₁₄O₈(1276666-16-0)

Safety Data

• Hazardous Substances Data: 1276666-16-0(Hazardous Substances Data)

Upstream product

• 95-85-2 2-hydroxy-5-chloro-aniline 
• 1276666-10-4 {2-[(5-chlorobenzoxazol-2-yl)-(3-oxo-butyl)amino]ethyl}carbamic acid tert-butyl ester 
• 17026-42-5 O,O'-dibenzoyl-D-tartaric acid 
• 1276666-13-7 5-chloro-2-(5-methyl-[1,4]diazepan-1-yl)-benzoxazole 
• 3621-81-6 2,5-dichloro-1,3-benzoxazole 
• 22876-19-3 5-chloro-2-mercaptobenzoxazole 
• 1144509-75-0 (2-((5-chloro-1,3-benzoxazol-2-yl)amino)ethyl)carbamic acid tert-butyl ester 

Relevant articles and documents

The first large-scale synthesis of MK-4305: A dual orexin receptor antagonist for the treatment of sleep disorder

A new synthetic route to drug candidate 1, a potent and selective dual orexin antagonist for the treatment of sleep disorders, has been developed. The key acyclic precursor 10 was prepared in a one-step process in 75% isolated yield from commercially available starting materials using novel chemistry to synthesize 2-substituted benzoxazoles. A reductive amination was followed by a classical resolution to afford chiral diazepane (R)-11. Finally, coupling of (R)-11 with acid 5 furnished the desired drug candidate 1.