The present invention relates to a medicament for treating or preventing a disease related to orexin receptor, especially orexin type 2 receptor, comprising a new compound having a urea structure or a pharmaceutically acceptable salt thereof as an active ingredient. In more detail, the present invention relates to a medicament for treating or preventing narcolepsy, idiopathic hypersomnia, hypersomnia, sleep apnea syndrome, etc.

The present invention includes a method of inhibiting, suppressing or preventing HBV infection in an individual in need thereof, comprising administering to the individual a therapeutically effective amount of at least one compound of the invention.

The present invention includes a method of inhibiting, suppressing or preventing HBV infection in an individual in need thereof, comprising administering to the individual a therapeutically effective amount of at least one compound of the invention.

The present invention provides bumetanide analogs and compositions comprising such analogs. The present invention also provides pharmaceutical compositions containing these bumetanide analogs and methods for their use. These analogs are believed useful for the treatment and/or prophylaxis of conditions that involve the Na.sup.+K.sup.+Cl.sup. co-transporter or GABA.sub.A receptor.

The present invention provides bumetanide analogs and compositions comprising such analogs. The present invention also provides pharmaceutical compositions containing these bumetanide analogs and methods for their use. These analogs are particularly useful for the treatment and/or prophylaxis of conditions that involve the Na.sup.+K.sup.+Cl.sup. co-transporter or GABA.sub.A receptor including but not limited to addictive disorders, Alzheimer's Disease, anxiety disorders, ascites, autism, bipolar disorder, cancer, depression, endothelial corneal dystrophy, edema, epilepsy, glaucoma. Huntington's Disease, insomnia, ischemia, migraine, migraine with aura, neuropathic pain, nociceptive neuralgia, nociceptive pain, ocular diseases, pain, Parkinson's disease, personality disorders, postherpetic neuralgia, psychosis, schizophrenia, seizure disorders, tinnitus, and withdrawal syndromes.

The present invention provides bumetanide analogs and compositions comprising such analogs. The present invention also provides pharmaceutical compositions containing these bumetanide analogs and methods for their use. These analogs are particularly useful for the treatment and/or prophylaxis of conditions that involve the Na.sup.+K.sup.+Cl.sup. co-transporter or GABA.sub.A receptor including but not limited to addictive disorders, Alzheimer's Disease, anxiety disorders, ascites, autism, bipolar disorder, cancer, depression, endothelial corneal dystrophy, edema, epilepsy, glaucoma. Huntington's Disease, insomnia, ischemia, migraine, migraine with aura, neuropathic pain, nociceptive neuralgia, nociceptive pain, ocular diseases, pain, Parkinson's disease, personality disorders, postherpetic neuralgia, psychosis, schizophrenia, seizure disorders, tinnitus, and withdrawal syndromes.

The present invention relates to a medicament for treating or preventing a disease related to orexin receptor, especially orexin type 2 receptor, comprising a new compound having a urea structure or a pharmaceutically acceptable salt thereof as an active ingredient. In more detail, the present invention relates to a medicament for treating or preventing narcolepsy, idiopathic hypersomnia, hypersomnia, sleep apnea syndrome, etc.

The instant invention provides for novel cationic lipids that can be used in combination with other lipid components such as cholesterol and PEG-lipids to form lipid nanoparticles with oligonucleotides. It is an object of the instant invention to provide a cationic lipid scaffold that demonstrates enhanced efficacy along with lower liver toxicity as a result of lower lipid levels in the liver. The present invention employs low molecular weight cationic lipids with one short lipid chain to enhance the efficiency and tolerability of in vivo delivery of siRNA.

The instant invention provides for novel cationic lipids that can be used in combination with other lipid components such as cholesterol and PEG-lipids to form lipid nanoparticles with oligonucleotides. It is an object of the instant invention to provide a cationic lipid scaffold that demonstrates enhanced efficacy along with lower liver toxicity as a result of lower lipid levels in the liver. The present invention employs low molecular weight cationic lipids with one short lipid chain to enhance the efficiency and tolerability of in vivo delivery of siRNA.

The present invention includes a method of inhibiting, suppressing or preventing HBV infection in an individual in need thereof, comprising administering to the individual a therapeutically effective amount of at least one compound of the invention.