CAS: 69-93-2; 1H-Purine-2,6,8(3H,7H,9H)-Trione

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CAS号68-94-0 次黄嘌呤 | CAS号69-89-6 黄嘌呤 | CAS号57-13-6 尿素 | CAS号72553-23-2 (2-amino-6-oxo-... | CAS号3240-72-0 5,6-氨基-2,4(1H,3... | CAS号73-24-5 腺嘌呤 | CAS号73-40-5 鸟嘌呤 | CAS号80156-61-2 N-(guanin-8-yl)... | CAS号69-93-2 尿酸 | CAS号58-61-7 腺苷 | CAS号120-89-8 仲班酸 | CAS号5676-27-7 Oxalyldiurea | CAS号105245-87-2 N-(2,5-氢-2,5-二氧... | CAS号97-59-6 尿囊素 | CAS号55441-71-9 9-甲基尿酸 | CAS号605-99-2 3-甲基尿酸-d3 | CAS号2002-60-0 1H-Purine-2,8(3... | CAS号2577-38-0 2,4,7(1H,3H,8H)... | CAS号5807-13-6 Bisalloxazine | CAS号27038-96-6 1H-Purine-2,6-d...

Uric Acid置于维生素 C体系中,用 Aq. Phosphate Buffer 作为反应溶剂,化学反应生成 尿酸
参考文献:十六烷基三甲基溴化铵-聚苯胺/活性炭复合物在高浓度抗坏血酸存在下同时测定多巴胺和尿酸
标题:十六烷基三甲基溴化铵-聚苯胺/活性炭复合物在高浓度抗坏血酸存在下同时测定多巴胺和尿酸
摘要:我们描述了一种由十六烷基三甲基溴化铵(ctab)官能化的聚苯胺(pani)和活性炭(ctab-Pani / Ac)组成的简单,低成本且可大量生产的复合物,用于同时测定多巴胺(da)和尿酸.
DOI:10.1039/c6Ra18740D

专利信息

专利号:US-7122304-B2
优先权日:1997-05-12
标 题:Methods for the storage and synthesis of nucleic acids using a solid support
发明人：GOLDSBOROUGH MINDY D; FOX DONNA K
权利人:WHATMAN INC
摘要:The invention relates to storage of nucleic acid (particularly mRNA) on a solid support and to using such nucleic acid in nucleic acid synthesis or amplification reactions. In a preferred aspect, the invention provides synthesis of cDNA and cDNA libraries.

专利号:US-2021246476-A1
优先权日:2020-01-31
标 题:Biosynthesis of preparing nicotinamide mononucleotide and derivatives thereof
发明人：ZHANG YI HENG PERCIVAL
权利人:ZHANG YI HENG PERCIVAL
摘要:A method of making nicotinamide mononucleotide (NMN), nicotinamide mononucleotide derivatives, or mixtures thereof is disclosed. The method involves the in vitro artificial enzymatic pathways comprised: the generation of alpha-D-ribose-1-phosphate from numerous substrates followed by the synthesis of nicotinamide mononucleotide catalyzed by nicotinamide riboside phosphorylase and nicotinamide riboside kinase or the generation of 5-phospho-alpha-D-ribose-1-diphosphate from nucleotides followed by the synthesis of nicotinamide mononucleotide catalyzed by nicotinamide phosphoribosyltransferase. The multiple enzymes were reconstituted in one pot, wherein in-situ removal of byproducts that can be converted to other non-inhibitory chemicals with supplementary enzymes push the overall biotransformation toward the synthesis of nicotinamide mononucleotide. Furthermore, nicotinamide mononucleotide can be converted to its derivatives—nicotinamide adenine dinucleotide and nicotinamide adenine dinucleotide phosphate.

专利号:US-2003050305-A1
优先权日:2000-05-22
标题:Thromboxane inhibitors, compositions and methods of use
发明人：TEJADA INIGO SAENZ DE
摘要:The present invention describes methods for treating or preventing sexual dysfunctions in males and females, and for enhancing sexual responses in males and females by administering a therapeutically effective amount of at least one thromboxane inhibitor, and, optionally, at least one compound that donates, transfers or releases nitric oxide, elevates endogenous levels of endothelium-derived relaxing factor, stimulates endogenous synthesis of nitric oxide or is a substrate for nitric oxide synthase, and/or at least one vasoactive agent. The male or female may preferably be diabetic. The present invention also provides novel compositions comprising at least one thromboxane inhibitor, and, at least one compound that donates, transfers or releases nitric oxide, elevates endogenous levels of endothelium-derived relaxing factor, stimulates endogenous synthesis of nitric oxide or is a substrate for nitric oxide synthase, and, optionally, at least one therapeutic agent, such as, vasoactive agents, nonsteroidal antiinflanmmatory compounds (NSAIDs), selective cyclooxygenase-2 (COX-2) inhibitors, anticoagulants, angiotensin converting enzymes (ACE) inhibitors, angiotensin II receptor antagonists, renin inhibitors, and mixtures thereof. The present invention also provides methods for treating or preventing ischemic heart disorders, myocardial infarction, angina pectoris, stroke, migraine, cerebral hemorrhage, cardiac fatalities, transient ischaemic attacks, complications following organ transplants, coronary artery bypasses, angioplasty, endarterectomy, atherosclerosis, pulmonary embolism, bronchial asthma, bronchitis, pneumonia, circulatory shock of various organs, nephritis, graft rejection, cancerous metastases, pregnancy-induced hypertension, preeclampsia, eclampsia, thrombotic and thromboembolic disorders, intrauterine growth, gastrointestinal disorders, renal diseases and disorders, disorders resulting from elevated uric acid levels and dysmenorrhea, and for inhibiting platelet aggregation or platelet adhesion or relaxing smooth muscles.

专利号:EP-1548006-B1
优先权日:2003-12-12
标题 :Synthesis of tetraazapentamethine derivatives, keratin fibers dyeing process which uses such synthesis
发明人：PEREIRA RUI; BURGAUD HERVE
权利人:OREAL
摘要:Producing tetraazapentamethine compounds (I) comprising reacting an azine compound with an oxidizing agent, is new. Producing tetraazapentamethine compounds of formula (I) comprises reacting an azine compound of formula (VI) or (VII) with an oxidizing agent; [Image] [Image] W1a cationic heteroaromatic group of formula (II) or (III); W2a heteroaromatic group of formula (IV) or (V); Z14Z7 or Z1; Z15Z8 or Z2; Z16Z13 or Z0; R25R5 or R1; Z17Z9 or Z3; Z18Z10 or Z4; Z19Z11 or Z5; Z20Z12 or Z6; R26R8 or R3; R27R7 or R4; R28, R29H, 1-6C alkyl or 1-6C alkoxy, but not both H; Z0CR2, N or NR21; Z1O, S or NR9; Z2N or CR10; Z3N or CR11; Z4N or CR12; Z5N or CR13; Z5N or CR13; Z6N or CR14; Z7O, S or NR15; Z8N or CR16; Z9N or CR17; Z10N or CR18; Z11N or CR19; Z12N or CR20; Z13CR6, N or NR22; R2, R6, R10, R16H; 1-4C alkyl substituted with 0-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH or SO3H; phenyl substituted with 0-2 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino; COOH; sulfonylamino; R1, R4, R5, R7, R9, R15, R21, R221-6C alkyl substituted with 0-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH or SO3H; R0, R3, R8, R11-R14, R17-R20H; 1-6C linear or branched hydrocarbyl with 0-3 unsaturations, optionally substituted with 1-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH, SO3H, sulfonylamino, 2-4C (poly)hydroxyalkylamino or halo and optionally interrupted by O, N, S or SO2; phenyl optionally substituted with 1-3 of OH, 1-2C alkoxy, 2-4C (poly)hydroxyalkoxy, NH2, 1-2C (di)alkylamino, COOH, SO3H, sulfonylamino, 2-4C (poly)hydroxyalkylamino or halo; pyrazolyl, pyrrolyl, imidazolyl, thiazolyl, oxazolyl, triazolyl, pyridyl, pyrimidinyl, triazinyl, pyrazinyl or pyridazinyl; X : an anion; R2+R10, R11+R12, R6+R16, R17+R18 can form a 5-6C aromatic ring substituted with 0-2 of OH, NH2, 1-2C (di)alkylamino, 1-2C alkoxy, 2-4C (poly)hydroxyalkylamino. An independent claim is also included for dyeing keratinic fibers by applying (VI) or (VII) onto the wet or dry fibers in the presence of an oxidizing agent. [Image].

专利号:US-7288120-B2
优先权日:2003-12-12
标题 :Synthesis of tetraazapentamethine compounds, and processes for dyeing keratin fibers using this synthesis
发明人：PEREIRA RUI; BURGAUD HERVE
权利人:OREAL
摘要:The present disclosure relates to processes for synthesizing tetraazapentamethine compounds that comprise reacting at least one compound of azine type with at least one oxidizing agent. The disclosure also relates to processes for dyeing keratin fibers, for example human keratin fibers, that comprise using such synthetic processes.

专利号:US-5872124-A
优先权日:1996-07-31
标题 :Treatment of diseases of the central nervous system using uric acid as a scavenger of peroxynitrite
发明人：KOPROWSKI HILARY; HOOPER DOUGLAS CRAIG; FARBER JOHN L
权利人:UNIV JEFFERSON
摘要:The process of treating a disease of the central nervous system with an agent from one or more of the following three classes of agents: (1) nitric oxide scavengers, (2) peroxynitrite scavengers, and (3) agents that either interfere with the synthesis of iNOS in the cell or the enzymatic activity of iNOS in the cell.