11β-methoxyestrone | 21375-11-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 11β-methoxyestrone
• 英文别名: 11β-methoxy-3-hydroxy-estra-1,3,5(10)-trien-17-one；3-hydroxy-11β-methoxyestra-1,3,5(10)-trien-17-one；11β-Methoxyestron；11beta-Methoxy-3-hydroxy-estra-1,3,5(10)-trien-17-one；(8S,9S,11S,13S,14S)-3-hydroxy-11-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
• CAS: 21375-11-1
• 化学式: C₁₉H₂₄O₃
• 分子量: 300.398
• InChiKey: QSXSULJIYAAMEZ-FYAJOAKPSA-N

物化性质

• 熔点：
  264 °C
• 沸点：
  465.3±45.0 °C(Predicted)
• 密度：
  1.20±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  22
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  11β-methoxyestrone 在 三乙基硼 、 碘 、 三正丁基氢锡 、 三氟甲磺酸N-吡啶鎓 作用下， 以 1,1,2-三氯乙烷 、 二甲基亚砜 为溶剂， 反应 20.0h， 生成 (8S,9S,11S,13S,14S,17R)-4-Fluoro-17-((Z)-2-iodo-vinyl)-11-methoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol
  参考文献：
  名称：

  Synthesis of A-ring fluorinated derivatives of iodine-125-labeled (17.alpha.,20E/Z)-iodovinylestradiols: effect on receptor binding and receptor-mediated target tissue uptake

  摘要：

  We have prepared a series of 2- and 4-fluoro derivatives of the isomeric (17alpha,20E)- and (17alpha,20Z)iodovinylestradiols (IVE2) and also the analogs substituted with either a 7alpha-methyl (7alpha-Me-IVE2) or 11beta-methoxy group (11beta-OMe-IVE2) and evaluated their in vitro and in vivo properties. Electrophilic substitution of the estrone derivatives with N-fluoropyridinium salt gave the 2- and 4-fluoro analogs which were subsequently converted to the 17alpha-ethynyl derivatives. The tributylstannyl intermediates were obtained from the corresponding 17alpha-ethynyl analogs using azobisisobutyronitrile or triethylborane as catalyst. All 12 products were also prepared as their no-carrier-added [I-125]iodovinyl analogs via destannylation of the tributylstannyl precursors. Binding affinity for the estrogen receptor (ER) was in general higher for the 4-F derivatives as compared to the 2-F derivatives, while the 20Z isomers of the same compounds showed somewhat higher ER binding affinity as compared to the 20E isomers. The combination of an A-ring fluoro and 7alpha- or 11beta-substituent decreased ER binding affinity. Substitution of a fluoro atom at C-4 on either the 17alpha-ethynylestradiol or isomeric 17alpha-IVE2 enhanced the affinity of the parent molecule for the ER. A-ring fluorination of all other analogues tested had no effect or depressed ER binding affinity. Varying incubation conditions showed substantial differences in ER binding kinetics between the 20E and 20Z isomers. Tissue distribution in immature female rats showed that the highest uterus uptake and uterus to blood/nontarget ratios in the IVE2 series were obtained with the 4-F-(17alpha,20Z)IVE2 isomer. The combination of A-ring fluoro and 7alpha- or 11beta-substitution decreased uterus uptake but had little or no effect on uterus to blood/nontarget ratios. The highest uterus to blood ratios were observed for the 4-F-(17alpha,20E)11beta-OMe-IVE2 (75 at 6 h and 125 at 12 h pi) reflecting rapid blood clearance and in vivo stability, as confirmed by the low levels of thyroid radioactivity. The lack of correlation between ER binding affinities and uterus uptake, and/or uptake ratios, suggests that other factors, including nonspecific binding and metabolic processes, also are involved in the tissue localization process. Our data suggest that 4-F substitution onto (17alpha,20Z)IVE2 and (17alpha,20E)11beta-OMe-IVE2 enhances the potential of these compounds to function as SPECT imaging agents of ER-rich tissues.

  DOI：

  10.1021/jm00073a004
• 作为产物：
  描述：

  在 盐酸 作用下， 以 甲醇 为溶剂， 反应 1.0h， 以0.32 g的产率得到11β-methoxyestrone
  参考文献：
  名称：

  Novel Estradiol Derivatives Labeled with Ru, W, and Co Complexes. Influence on Hormone-Receptor Affinity of Several Organometallic Groups at the 17 Position

  摘要：

  In order to elucidate the extent to which recognition of the estrogen receptor is influenced by addition of an organometallic substituent at the 17alpha position, modification of 17beta-estradiol at this position was carried out by using the organometallic groups -CdropC-(eta(5)-C5H4)RuCp, CH2-(eta(5)-C5H4)RuCp, -CdropC-(eta(5)-C5H4)-W(CO)(3)(Me), -(CdropCCHO)Co-2(CO)(6), and -(CdropCCH(2)OH)CO2(CO)(6). The relative binding affinity (RBA) values for estradiol receptor alpha showed that recognition was good (RBA between 20 and 13.5%) when the organometallic moiety was attached at the end of a rigid alkyne spacer. However, the affinity of the modified hormone for the receptor was severely reduced. (RBA = 1%) for a substituent such as -CH2-(eta(5)-C5H4)-RuCp, in which the spacer is reduced to a single flexible sp(3) carbon atom, allowing the organometallic moiety greater freedom of movement around the attachment point. The RBA values found were in agreement with results obtained from a molecular-modeling study in which 5, an organometallic hormone with a rigid spacer, or 7, a molecule with a flexible spacer, was inserted into the cavity of the recently characterized Ligand-Binding Domain of estrogen receptor alpha.

  DOI：

  10.1002/1521-3765(20021115)8:22<5241::aid-chem5241>3.0.co;2-m

文献信息

• 17-difluoromethylene-estratrienes
  申请人：Schering Aktiengesellschaft

  公开号：US06018062A1

  公开（公告）日：2000-01-25

  This invention describes the new 17-difluoromethylene-estratrienes of general formula I ##STR1## in which R.sup.1 means a hydrogen atom or a C.sub.1 -C.sub.10 alkyl group, R.sup.5 means a methyl or ethyl group, and R.sup.2 means a hydrogen atom or a C.sub.1 -C.sub.10 alkyl group in .alpha.- or .beta.-position, R.sup.3 means a hydrogen atom or a C.sub.1 -C.sub.10 alkyloxy group in .alpha.- or .beta.-position, R.sup.4 means a hydrogen atom in .alpha.- or .beta.-position, and A, B, D, E and G each mean a hydrogen atom, and optionally at least one of substituent pairs G and R.sup.2, R.sup.2 and R.sup.4, R.sup.4 and A, A and R.sup.3, B and D, D and E mean a double bond.

  这项发明描述了一般式I的新型17-二氟甲基醇基雌三烯类化合物，其中R.sup.1表示氢原子或C.sub.1-C.sub.10烷基基团，R.sup.5表示甲基或乙基基团，R.sup.2表示α-或β-位的氢原子或C.sub.1-C.sub.10烷基基团，R.sup.3表示α-或β-位的氢原子或C.sub.1-C.sub.10烷氧基团，R.sup.4表示α-或β-位的氢原子，A、B、D、E和G各自表示氢原子，并且可选地至少有一个取代基对G和R.sup.2、R.sup.2和R.sup.4、R.sup.4和A、A和R.sup.3、B和D、D和E表示双键。
• 16.beta.-([18F]Fluoro)estrogens: systematic investigation of a new series of fluorine-18-labeled estrogens as potential imaging agents for estrogen-receptor-positive breast tumors
  作者：Henry F. VanBrocklin、Kathryn E. Carlson、John A. Katzenellenbogen、Michael J. Welch

  DOI：10.1021/jm00063a012

  日期：1993.5

  estradiol. These ligands have been labeled in the 16 beta position with fluorine-18 by the nucleophilic displacement of an alpha-disposed trifluoromethanesulfonate by [18F]fluoride ion. Reduction with lithium aluminum hydride produced the estradiol series ([18F]-7a-c), while treatment with lithium trimethylsilylacetylide afforded the ethynylated series ([18F]-8a-c). The synthesis time was 85 min for [18F]-7a-c

  为了了解可能导致基于雌激素受体（ER）的乳腺肿瘤显像剂具有改善的摄取特性的结构特征，我们合成了16β-氟雌二醇（beta FES）的几种新类似物，并研究了它们在未成熟大鼠中的组织分布。我们准备的化合物是11个β-甲氧基-βFES（7a），11个β-乙基-βFES（7b），17个α-乙炔基-βFES（8c），17个α-乙炔基-11个β-甲氧基-βFES （8a）和11个β-乙基-17α-乙炔基-βFES（8b）。所有类似物对ER都表现出良好的亲和力，在25摄氏度（从10到460）范围内，雌二醇等于100。通过HPLC方法测量其辛醇/水分配系数使我们能够估计其非特异性结合水平，从而能够预测其结合选择性指数（BSI，即 它们的ER特异性与非特异性结合的比率）；三个氟取代类似物的BSI值超过雌二醇。这些配体已通过[18F]氟离子亲核取代了α沉积的三氟甲磺酸盐，并在16β位置被氟18标记。用氢化铝锂还原产生雌二醇系列（[18F]
• Synthesis of 2,16α- and 4,16α-difluoroestradiols and their 11β-methoxy derivatives as potential estrogen receptor-binding radiopharmaceuticals
  作者：Yann Seimbille、Hasrat Ali、Johan E. van Lier

  DOI：10.1039/b110021c

  日期：2002.2.22

  fluorinations of intermediate bistrimethylsilyl enol ethers and 16α-fluoroestrones followed by reduction of the 17-ketone and chromatographic separation of the isomeric products. The second route proceeds via electrophilic substitution of estrone or 11β-methoxyestrone with N-fluoropyridinium salt to give the 2- and 4-fluoro derivatives followed by conversion to the reactive 16β,17β-cyclic sulfates. Stereoselective

  我们通过两种不同的途径制备了2,16α-和4,16α-二氟雌二醇及其11β-甲氧基衍生物。第一条路线允许最终产品的大规模合成和表征，而第二条路线被选择用于氟化作用 作为便利的最后一步 贴标与寿命短的[ 18 F]氟。前一条路线涉及中间体双三甲基甲硅烷基烯醇醚和16α-氟雌酮的连续亲电氟化反应，然后进行减少异构体产物的17-酮分离和色谱分离。第二种途径是通过亲电取代雌酮或11β-甲氧基雌酮与N-氟吡啶鎓盐生成2-氟和4-氟衍生物，然后转化为反应性16β，17β-环硫酸盐。立体选择性开环硫酸盐 通过亲核的氟化作用使用Me 4 NF并随后去除保护层醚和硫酸盐基团通过快速水解 在酸性 乙醇得到所需的16α-氟衍生物。后一种方法可以容易地适于与放射性标记18通过取代我˚F 4 NF为18 ˚F -在乙腈。初步生物学数据表明，在16α-[ 18 F]氟雌​​二醇上同时添加了4-氟和11β-甲氧基（外语教学）可能会提供改进
• Synthesis of estrogen sulfamates: Compounds with a novel endocrinological profile
  作者：Sigfrid Schwarz、Ina Thieme、Margit Richter、Bernd Undeutsch、Harry Henkel、Walter Elger

  DOI：10.1016/s0039-128x(96)00200-0

  日期：1996.12

  generally applicable and convenient methods for the multigram synthesis of these derivatives are desirable. Numerous estra-1,3,5(10)-trienes derived from estrone, estradiol. 14 alpha,15 alpha-methylenestradiol, ethinylestradiol, and estriol have been esterified with sulfamoyl chloride and N-methylsulfamoyl chloride by a novel approach involving the use of 2,6-di-tert-butylpyridines as bases and chemoselective

  口服硫酸雌激素是有希望的激素。因此，期望用于这些衍生物的多谱图合成的普遍适用且方便的方法。衍生自雌酮，雌二醇的大量estra-1,3,5（10）-三烯。已通过一种新颖的方法将氨磺酰氯和N-甲基氨磺酰氯与14α，15α-亚甲基雌二醇，乙炔雌二醇和雌三醇酯化，该新颖方法涉及使用2,6-二叔丁基吡啶作为碱和化学选择性羟基保护基。这些途径通过原位产生的氮杂亚砜来避免酯的非选择性形成和副反应。为了进行毒理学和临床研究，使用二甲基甲酰胺作为溶剂和碱，开发了一种100 g规模的氨基磺酸雌酮的新合成方法。
• 16-Hydroxyestratriene als selektiv wirksame Estrogene
  申请人：Schering AG

  公开号：EP1580192A2

  公开（公告）日：2005-09-28

  Die Erfindung beschreibt neue Verbindungen als pharmazeutische Wirkstoffe, die in vitro eine höhere Affinität an Estrogenrezeptorpräparationen von Rattenprostata als an Estrogenrezeptorpräparationen von Rattenuterus und in vivo eine präferentielle Wirkung am Knochen im Vergleich zum Uterus und/oder ausgeprägte Wirkung hinsichtlich Stimulierung der Expression von 5HT2a-Rezeptor und -transporter aufweisen, deren Herstellung, ihre therapeutische Anwendung und pharmazeutischen Darreichungsformen, die die neuen Verbindungen enthalten. Bei den neuen Verbindungen handelt es sich um 16α- und 16β-Hydroxy-estra,1,3,5(10)-estratriene, die am Steroid-Gerüst weitere Substituenten tragen sowie in den B-, C-und/oder D-Ringen eine oder mehrere zusätzliche Doppelbindungen aufweisen können.

  该发明描述了一种新的化合物作为药物，这些化合物在体外与大鼠前列腺的雌激素受体制备之间具有更高的亲和力，而不是与大鼠子宫的雌激素受体制备之间具有更高的亲和力，在体内与骨骼相比与子宫具有优先作用，并且在刺激5HT2a受体和转运蛋白的表达方面具有明显的作用，该发明还涉及这些新化合物的制备、其治疗用途和含有这些新化合物的药物剂型。这些新化合物是16α-和16β-羟基雌甾-1,3,5(10)-三烯，它们在类固醇骨架上带有其他取代基，以及在B、C和/或D环中可能具有一个或多个额外的双键。