Abstract:
Compounds are provided according to formula I: where R, R′, R3, R4, R5, and R6 are as defined herein. Provided compounds and pharmaceutical compositions thereof are useful for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, Alzheimer' s Disease, Down's syndrome, Parkinson's Disease, and others.
Abstract:
The present invention relates to methods of treating or preventing ischemia-related (i.e., neural cell hypoxia and/or hypoglycemic) conditions by administering to a patient in need thereof certain thiosemicarbazone compounds. More particularly, the present invention relates to methods of preventing or treating certain ischemia-related conditions, which may include Alzheimer's disease, Parkinson's disease, and ischemic states that are due to or result from such conditions as: coronary artery bypass graft surgery; global cerebral ischemia due to cardiac arrest; focal cerebral infarction; cerebral hemorrhage; hemorrhage infarction; hypertensive hemorrhage; hemorrhage due to rupture of intracranial vascular abnormalities; subarachnoid hemorrhage due to rupture of intracranial arterial aneurysms; hypertensive encephalopathy; carotid stenosis or occlusion leading to cerebral ischemia; cardiogenic thromboembolism; spinal stroke and spinal cord injury; diseases of cerebral blood vessels, e.g., atherosclerosis, vasculitis; macular degeneration; myocardial infarction; cardiac ischemia; and superaventicular tachyarrhytmia.
Abstract:
A method of preparing a 4'-0-demethy-4.beta.-NHR podophyllotoxin, where R is an aryl or dialkyl amino alkyl group, is disclosed. The method includes reacting H.sub.2 NR under basic conditions with a mixture of .alpha. and .beta. epimers of 4'-0-demethyl-4-bromo-podophyllotoxin, to form an epimeric mixture of the 4'-0-demethyl-4-NHR-podophyllotoxin compounds, removing acidic impurities which bind to silica gel in a dichloromethane solvent, and crystallizing 4'-0-demethyl-4.beta.-NHR-podophyllotoxin from its .alpha. epimer.
Abstract translation:公开了一种制备其中R为芳基或二烷基氨基烷基的4'-O-脱甲基-4β-NHR鬼臼毒素的方法。 该方法包括使碱性条件下的H 2 N R与4'-O-去甲基-4-溴鬼臼毒素的α和β差向异构体的混合物反应,形成4'-O-去甲基-4-NHR-鬼臼毒素化合物的差向异构体混合物 去除在二氯甲烷溶剂中与硅胶结合的酸性杂质,并从其α差向异构体中结晶出4'-O-脱甲基-4β-NHR-鬼臼毒素。
Abstract:
Compounds are provided according to formula I: where R, R′, R3, R4, R5, and R6 are as defined herein. Provided compounds and pharmaceutical compositions thereof are useful for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, Alzheimer's Disease, Down's syndrome, Parkinson's Disease, and others.
Abstract:
The present invention relates to methods of treating ischemia-related conditions by administering to a patient in need of such methods certain thiosemicarbazone compounds. Preferred embodiments of the present invention relates to methods of treating specific ischemia-related conditions, including but not limited to Alzheimer's disease, Parkinson's disease, Coronary artery bypass graft surgery, Global cerebral ischemia due to cardiac arrest, focal cerebral infarction, cerebral hemorrhage, hemorrhage infarction, hypertensive hemorrhage. hemorrhage due to rupture of intracranial vascular abnormalities, subarachnoid hemorrhage due to rupture of intracranial arterial aneurysms, hypertensive encephalopathy, carotid stenosis or occlusion leading to cerebral ischemia, cardiogenic thromboembolism, spinal stroke and spinal cord injury, diseases of cerebral blood vessels: e.g., atherosclerosis, vasculitis, Macular degeneration, myocardial infarction, cardiac ischemia and superaventicular tachyarrhytmia.
Abstract:
The present invention relates to methods of treating ischemia-related conditions by administering to a patient in need of such methods certain thiosemicarbazone compounds. Preferred embodiments of the present invention relates to methods of treating specific ischemia-related conditions, including but not limited to Alzheimer's disease, Parkinson's disease, Coronary artery bypass graft surgery, Global cerebral ischemia due to cardiac arrest, focal cerebral infarction, cerebral hemorrhage, hemorrhage infarction, hypertensive hemorrhage. hemorrhage due to rupture of intracranial vascular abnormalities, subarachnoid hemorrhage due to rupture of intracranial arterial aneurysms, hypertensive encephalopathy, carotid stenosis or occlusion leading to cerebral ischemia, cardiogenic thromboembolism, spinal stroke and spinal cord injury, diseases of cerebral blood vessels: e.g., atherosclerosis, vasculitis, Macular degeneration, myocardial infarction, cardiac ischemia and superaventicular tachyarrhytmia.