摘要:
A C-nitroso compound having a molecular weight ranging from about 225 to about 1,000 (from about 225 to about 600 for oral administration) on a monomeric basis wherein a nitroso group is attached to a tertiary carbon, which is obtained by nitrosylation of a carbon acid having a pKa less than about 25, is useful as an NO donor. When the compound is obtained from a carbon acid with a pKa less than about 10, it provides vascular relaxing effect when used at micromolar concentrations and this activity is potentiated by glutathione to be obtained at nanomolar concentrations. When the compound is obtained from a carbon acid with a pKa ranging from about 15 to about 20, vascular relaxing effect is obtained at nanomolar concentrations without glutathione. The compound is preferably water-soluble and preferably contains a carbon alpha to the nitrosylated carbon which is part of a ketone group. In one embodiment, the C-nitroso compound is obtained by nitrosylation of a conventional drug or such drug modified to modify the carbon acid pKa thereof. When such drug is a nonsteroidal anti-inflammatory drug, the resulting C-nitroso compound functions as a COX-1 and COX-2 inhibitor without the deleterious effects associated with COX-1 inhibition but with the advantageous effects associated with COX-1 and COX-2 inhibition. One such C-nitroso compound is a nitrosoketoibuprofen. A specific example of this kind of compound is isolated as dimeric 2-[4′-(α-nitroso)isobutyrylphenyl]propionic acid. In another case, the C-nitroso compound contains the moiety where X is S, O or NR. One embodiment is directed to COX-2 inhibitors where a tertiary carbon atom and/or an oxygen atom and/or a sulfur atom is nitrosylated.
摘要:
Disclosed are novel NO-releasing compounds which comprise a stabilized S-nitrosyl group and a free alcohol or a free thiol group. Also disclosed is a method of preparing the NO-releasing compounds. The method comprises reacting a polythiol or a thioalcohol with a nitrosylating agent. Also disclosed are medical devices coated with the disclosed compounds, methods of delivering NO to treatments sites in a subject by utilizing the medical devices and methods of sterilizing surfaces.
摘要:
A C-nitroso compound having a molecular weight ranging from about 225 to about 1,000 (from about 225 to about 600 for oral administration) on a monomeric basis wherein a nitroso group is attached to a tertiary carbon, which is obtained by nitrosylation of a carbon acid having a pKa less than about 25, is useful as an NO donor. When the compound is obtained from a carbon acid with a pKa less than about 10, it provides vascular relaxing effect when used at micromolar concentrations and this activity is potentiated by glutathione to be obtained at nanomolar concentrations. When the compound is obtained from a carbon acid with a pKa ranging from about 15 to about 20, vascular relaxing effect is obtained at nanomolar concentrations without glutathione. The compound is preferably water-soluble and preferably contains a carbon alpha to the nitrosylated carbon which is part of a ketone group. In one embodiment, the C-nitroso compound is obtained by nitrosylation of a conventional drug or such drug modified to modify the carbon acid pKa thereof When such drug is a nonsteroidal anti-inflammatory drug, the resulting C-nitroso compound functions as a COX-1 and COX-2 inhibitor without the deleterious effects associated with COX-1 inhibition but with the advantageous effects associated with COX-1 and COX-2 inhibition. One such C-nitroso compound is a nitrosoketoibuprofen. A specific example of this kind of compound is isolated as dimeric 2-[4′-(&agr;-nitroso)isobutyrylphenyl] propionic acid. In another case, the C-nitroso compound contains the moiety where X is S, O or NR One embodiment is directed to COX-2 inhibitors where a tertiary carbon atom and/or an oxygen atom and/or a sulfur atom is nitrosylated.
摘要:
A reactive oxygen generating enzyme inhibitor with NO donor bioactivity, e.g., nitrated allopurinol, is useful to treat heart failure, stable angina, ischemic disorder, ischemic reperfusion injury, atherosclerosis, sickle cell disease, diabetes, Alzheimer's disease, Parkinson's disease, ALS and asthma and to obtain proper contraction of heart, skeletal and smooth muscle.
摘要:
A reactive oxygen generating enzyme inhibitor with NO donor bioactivity, e.g., nitrated allopurinol, is useful to treat heart failure, stable angina, ischemic disorder, ischemic reperfusion injury, atherosclerosis, sickle cell disease, diabetes, Alzheimer's disease, Parkinson's disease, ALS and asthma and to obtain proper contraction of heart, skeletal and smooth muscle.
摘要:
A C-nitroso compound having a molecular weight ranging from 225 to 1,000 (from 225 to 600 for oral administration) on a monomeric basis wherein a nitroso group is attached to a tertiary carbon, which is obtained by nitrosylation of a carbon acid having a pKa less than about 25, is useful as an NO donor. When the compound is obtained from a carbon acid with a pKa less than about 10, it provides vascular relaxing effect when used at micromolar concentrations and this activity is potentiated by glutathione to be obtained at nanomolar concentrations. When the compound is obtained from a carbon acid with a pKa ranging from about 15 to about 20, vascular relaxing effect is obtained at nanomolar concentrations without glutathione. In another embodiment, a biocompatible polymer incorporates a C-nitroso moiety.
摘要:
Treatment of pulmonary disorders associated with hypoxemia and/or smooth muscle constriction and/or inflammation comprises administering into the lungs as a gas compound with an NO group which does not form NO2/NOx in the presence of oxygen or reactive oxygen species at body temperature. Treatment of cardiac and blood disorders, e.g., angina, myocardial infarction, heart failure, hypertension, sickle cell disease and clotting disorders, comprises administering into the lungs as a gas, a compound which reacts with cysteine in hemoglobin and/or dissolves in blood and has an NO group which is bound in said compound so that it does not form NO2/NOx in the presence of oxygen or reactive oxygen species at body temperature. Exemplary of the compound administered in each case is ethyl nitrite.
摘要翻译:与低氧血症和/或平滑肌收缩和/或炎症相关的肺部疾病的治疗包括将作为不形成NO 2的NO组的气体化合物施用于肺部, / SUB>在体温存在氧或活性氧的情况下。 治疗心脏和血液疾病,例如心绞痛,心肌梗塞,心力衰竭,高血压,镰状细胞病和凝血障碍,包括作为气体施用于肺部,与血红蛋白中的半胱氨酸反应和/或溶解于血液中的化合物和 具有在所述化合物中结合的NO基团,使得其在体温存在氧或活性氧的情况下不形成NO 2 / NO x 2 x。 在每种情况下施用的化合物的实例是亚硝酸乙酯。
摘要:
A C-nitroso compound having a molecular weight ranging from about 225 to about 1,000 (from about 225 to about 600 for oral administration) on a monomeric basis wherein a nitroso group is attached to a tertiary carbon, which is obtained by nitrosylation of a carbon acid having a pKa less than about 25, is useful as an NO donor. In another case, the C-nitroso compound contains the moiety —C—N(O)X— where X is S, O or NR. One embodiment is directed to COX-2 inhibitors where a tertiary carbon atom and/or an oxygen atom and/or a sulfur atom is nitrosylated.
摘要:
Treatment of pulmonary disorders associated with hypoxemia and/or smooth muscle constriction comprises administering into the lungs as a gas a compound with an NO group which does not form NO2/NOx in the presence of oxygen or reactive oxygen species at body temperature. Treatment of cardiac and blood disorders, e.g., angina, myocardial infarction, heart failure, hypertension, sickle cell disease and clotting disorders, comprises administering into the lungs as a gas, a compound which reacts with cysteine in hemoglobin and/or dissolves in blood and has an NO group which is bound in said compound so that it does not form NO2/NOx in the presence of oxygen or reactive oxygen species at body temperature. Exemplary of the compound administered in each case is ethyl nitrite.
摘要翻译:与低氧血症和/或平滑肌收缩相关的肺部疾病的治疗包括在体温下在氧气或活性氧存在的情况下向肺中施用具有NO基团的化合物作为气体,所述NO组不形成NO 2 / NO x。 治疗心脏和血液疾病,例如心绞痛,心肌梗死,心力衰竭,高血压,镰状细胞病和凝血障碍,包括作为气体给予肺,与血红蛋白中的半胱氨酸反应和/或溶解于血液中的化合物和 具有在所述化合物中结合的NO基团,使得其在体温存在氧或活性氧的情况下不形成NO 2 / NO x。 在每种情况下施用的化合物的实例是亚硝酸乙酯。
摘要:
A C-nitroso moiety derived from a carbon acid with a pKa less than about 25 is bound in a biocompatible polymer as an ester or ether to a pendant hydroxyl group, as an ester to a pendant carboxylic acid or as an amine or amide to a pendant amine moiety. The polymer with c-nitroso moiety bound thereto can be coated on a medical device and/or used for prophylaxis of a patient at risk for restenosis. A c-nitroso moiety bound as amide to polyisobutylene amine substituted styrene copolymer is described in detail.