3'-Amino-4'-methoxyflavone

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: 3'-Amino-4'-methoxyflavone
• 英文别名: 2-(3-Amino-4-methoxyphenyl)chromen-4-one
• 化学式: C₁₆H₁₃NO₃
• 分子量: 267.284
• InChiKey: MREGTIYNMVRPMI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  61.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  4'-methoxy-3'-nitroflavone 在 tin(ll) chloride 作用下， 生成 3'-Amino-4'-methoxyflavone
  参考文献：
  名称：

  Inhibition of nitric oxide (NO•) production in murine macrophages by flavones

  摘要：

  The effect of flavone (2-phenylbenzopyran-4-one) and three amino-substituted flavones on the production of nitrite by murine activated peritoneal macrophages was studied in vitro. Activated peritoneal macrophages obtained from mice pre-treated with concanavalin A (Con A) (in vivo), after exposure in vitro to lipopolysaccharide (LPS) at a concentration of 100 ng/ml, produced nitrite (20.3 +/- 2.5 nmol/10(6) cells), as measured after 24 hr by the Griess reaction. Stimulation of production of nitrite was inhibited by N-G-monomethyl-l-arginine, suggesting that nitrite was formed via nitric oxide (NO.) as a product of metabolism of arginine. Stimulation was inhibited by flavone and the aminoflavones (20-100 mu M). 3'-amino-4'-hydroxyflavone was the most potent inhibitor of nitrite production. Genistein (5,7-dihydroxy-3-(4-hydroxy-phenyl)-4H-1-benzopyran-4-one) also inhibited production of nitrite, by a mechanism that appears not to involve protein tyrosine kinases. These results suggest that the flavones can modulate the immune responses and the inflammatory reactions by controlling production of nitric oxide.

  DOI：

  10.1016/0006-2952(95)00237-t

文献信息

• [EN] POLYMERIC HYPERBRANCHED CARRIER-LINKED PRODRUGS<br/>[FR] PROMÉDICAMENTS LIÉS À DES EXCIPIENTS POLYMÉRIQUES HYPERBRANCHÉS
  申请人：ASCENDIS PHARMA AS

  公开号：WO2013024048A1

  公开（公告）日：2013-02-21

  The present invention relates to water-soluble carrier-linked prodrugs of formula (I),wherein POL is a polymeric moiety,each Hyp is independently a hyperbranched moiety,each moiety SP is independently a spacer moiety, each L is independently a reversible prodrug linker moiety, m is 0 or 1, each n is independently an integer from 2 to 200 and each x is independently 0 or 1. It further relates to pharmaceutical compositions comprising said water- soluble carrier-linked prodrugs and methods of treatment.

  本发明涉及水溶性载体连接的前药，其化学式为（I），其中POL是聚合物基团，每个Hyp是独立的超支化基团，每个基团SP是独立的间隔基团，每个L是独立的可逆前药连接基团，m为0或1，每个n是独立的整数，范围从2到200，每个x是独立的0或1。此外，还涉及包含所述水溶性载体连接的前药的药物组合物和治疗方法。
• [EN] HIGH-LOADING WATER-SOLUBLE CARRIER-LINKED PRODRUGS<br/>[FR] PROMÉDICAMENTS LIÉS À DES EXCIPIENTS HYDROSOLUBLES DE FORTE CHARGE
  申请人：ASCENDIS PHARMA AS

  公开号：WO2013024047A1

  公开（公告）日：2013-02-21

  The present invention relates to water-soluble carrier-linked prodrugs of formula (I), wherein B, A and Hyp form the carrier, B is a branching core, each A is independently a poly(ethylene glycol)-based polymeric chain, each Hyp is independently a branched moiety, each SP is independently a spacer moiety, each L is independently a reversible prodrug linker moiety, each D is independendly a biologically active moiety, each x is independently 0 or 1, each m is independently an integer of from 2 to 64, n is an integer from 3 to 32; or the pharmaceutically acceptable salt thereof. It further relates to pharmaceutical compositions comprising said water-soluble carrier-linked prodrugs, their use asmedicament or diagnostic, and methods of treatment.

  本发明涉及水溶性载体连接的前药，其化学式为(I)，其中B、A和Hyp形成载体，B是一个分支核心，每个A独立地是一条聚乙二醇基聚合链，每个Hyp独立地是一个分支基团，每个SP独立地是一个间隔基团，每个L独立地是一个可逆前药连接基团，每个D独立地是一个生物活性基团，每个x独立地为0或1，每个m独立地是从2到64的整数，n是从3到32的整数；或其药学上可接受的盐。进一步涉及包括所述水溶性载体连接的前药的药物组合物，其用作药物或诊断，以及治疗方法。
• [EN] PROTEIN CARRIER-LINKED PRODRUGS<br/>[FR] PROMÉDICAMENTS LIÉS À UN EXCIPIENT PROTÉIQUE
  申请人：ASCENDIS PHARMA AS

  公开号：WO2013024049A1

  公开（公告）日：2013-02-21

  The present invention relates to water-soluble protein carrier- linked prodrugs wherein the protein carrier comprises an amino acid sequence consisting of at least 100 amino acid residues forming random coil conformation and comprising alanine, serine and proline residues. It further relates to pharmaceutical compositions comprising said water-soluble protein carrier- linked prodrugs, their use as a medicament as well as methods of treatment and administration.

  本发明涉及水溶性蛋白载体连接的前药，其中蛋白载体包括至少100个氨基酸残基组成的氨基酸序列，形成随机卷曲构象，包括丙氨酸、丝氨酸和脯氨酸残基。还涉及包含上述水溶性蛋白载体连接的前药的药物组合物，它们作为药物的用途，以及治疗和管理的方法。
• [EN] HYDROGEL-LINKED PRODRUGS RELEASING MODIFIED DRUGS<br/>[FR] PROMÉDICAMENTS LIÉS À UN HYDROGEL LIBÉRANT DES MÉDICAMENTS MODIFIÉS
  申请人：ASCENDIS PHARMA AS

  公开号：WO2014173759A1

  公开（公告）日：2014-10-30

  The present invention relates to a process for the preparation of a hydrogel-linked prodrug releasing a tag moiety-bio logically active moiety conjugate, to a hydrogel-linked prodrug releasing a tag moiety-bio logically active moiety conjugate obtainable by such process, to pharmaceutical compositions comprising said prodrug and their use as a medicament.

  本发明涉及一种制备水凝胶连接的前药释放标签基团-生物活性基团结合物的方法，以及通过该方法获得的水凝胶连接的前药释放标签基团-生物活性基团结合物，还涉及包含该前药的药物组合物及其作为药物的用途。
• Biodegradable Polyethylene Glycol Based Water-Insoluble Hydrogels
  申请人：Rau Harald

  公开号：US20120156259A1

  公开（公告）日：2012-06-21

  The present invention relates to biodegradable polyethylene glycol based water-insoluble hydrogels comprising backbone moieties which are interconnected by hydrolytically degradable bonds, the backbone moieties further comprising reactive functional groups, wherein the water-insoluble hydrogel is further characterized in that the ratio between the time period for the complete degradation of the hydrogel by hydrolysis of the degradable bonds into water-soluble degradation products comprising one or more backbone moieties and the time period for the release of the first 10 mol-% of water-soluble degradation products comprising one or more backbone moieties based on the total amount of backbone moieties in the hydrogel is greater than 1 and equal to or less than 2. The invention further relates to conjugates of such hydrogels with ligands or ligating groups, prodrugs and pharmaceutical compositions as well as their use in a medicament.

  本发明涉及可生物降解的聚乙二醇基水不溶性水凝胶，其包含通过水解降解键相互连接的骨架基团，骨架基团进一步包括反应性功能团，其中水不溶性水凝胶的特征在于，通过水解降解可将可降解键分解为可溶于水的降解产物，包括一个或多个骨架基团，完全降解水凝胶所需的时间与基于水凝胶中所有骨架基团数量的第一个10摩尔％可溶性降解产物的释放时间之比大于1且小于等于2。本发明还涉及这种水凝胶与配体或配位基团的共轭物、前药和制药组合物以及它们在药物中的使用。