methyl 5-nitro-2-(benzyloxy)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate | 233272-32-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: methyl 5-nitro-2-(benzyloxy)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate
• 英文别名: 5-nitro-N-benzyloxycarbonyl-3-methoxycarbonyl-1,2,3,4-tetrahydroisoquinoline；2-O-benzyl 3-O-methyl 5-nitro-3,4-dihydro-1H-isoquinoline-2,3-dicarboxylate
• CAS: 233272-32-7
• 化学式: C₁₉H₁₈N₂O₆
• 分子量: 370.362
• InChiKey: GYPODGMSEPEWLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  27
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl 5-nitro-2-(benzyloxy)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate 在 palladium on activated charcoal 氢气 、 sodium carbonate 作用下， 以 1,4-二氧六环 、 甲醇 为溶剂， 反应 0.58h， 生成 5-Amino-3,4-dihydro-1H-isoquinoline-2,3-dicarboxylic acid 2-(9H-fluoren-9-ylmethyl) ester 3-methyl ester
  参考文献：
  名称：

  Synthesis ofN ^α-FmocN,N′-bis-Boc-5-, 6- and 8-guanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid (5-GTIC, 6-GTIC and 8-GTIC)

  摘要：

  通过微波辐照合成了 N δ±-Fmoc-N,N′-双叔丁氧羰基-5-、6-和 8-鸟嘌呤基-Tic-OH（5-、6-和 8-GTIC）这三种具有基本特性的构象受限氨基酸。这些氨基酸结合了精氨酸的基本特性和苯丙氨酸的芳香特性，可用作基于多肽的结构-活性研究的功能工具。

  DOI：

  10.1055/s-2004-834875
• 作为产物：
  描述：

  1,2,3,4-四氢异喹啉-3-羧酸 、 氯甲酸苄酯 、 碘甲烷 在 nitronium tetrafluoborate 、 碳酸氢钠 、 potassium carbonate 作用下， 以 乙腈 为溶剂， 生成 methyl 5-nitro-2-(benzyloxy)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate 、 methyl 7-nitro-2-(benzyloxy)-1,2,3,4-tetrahydroisoquinoline-3-carboxylate
  参考文献：
  名称：

  Synthesis ofN ^α-FmocN,N′-bis-Boc-5-, 6- and 8-guanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid (5-GTIC, 6-GTIC and 8-GTIC)

  摘要：

  通过微波辐照合成了 N δ±-Fmoc-N,N′-双叔丁氧羰基-5-、6-和 8-鸟嘌呤基-Tic-OH（5-、6-和 8-GTIC）这三种具有基本特性的构象受限氨基酸。这些氨基酸结合了精氨酸的基本特性和苯丙氨酸的芳香特性，可用作基于多肽的结构-活性研究的功能工具。

  DOI：

  10.1055/s-2004-834875

文献信息

• 3,7-Disubstituted-1,2,3,4-tetrahydroisoquinolines Display Remarkable Potency and Selectivity as Inhibitors of Phenylethanolamine <i>N-</i>Methyltransferase versus the α₂-Adrenoceptor^1a
  作者：Gary L. Grunewald、Vilas H. Dahanukar、Bee Teoh、Kevin R. Criscione

  DOI：10.1021/jm9807252

  日期：1999.6.1

  3-Hydroxymethyl-1,2,3,4-tetrahydroisoquinoline (4) is a more selective inhibitor (PNMT K-i = 1.1 mu M, alpha(2) K-i = 6.6 mu M, selectivity (alpha(2) K-i/PNMT K-i) = 6.0) of phenylethanolamine N-methyltransferase (PNMT, EC 2.1.1.28), with respect to its az-adrenoceptor affinity, than is 3-methyl-1,2,3,4-tetrahydroisoquinoline (2; PNMT K-i = 2.1 mu M, alpha 2 K-i = 0.76 mu M, selectivity = 0.36) or 1,2,3,4-tetrahydroisoquinoline (1, THIQ; PNMT K-i = 9.7 mu M, alpha 2 K-i = 0.35 mu M, selectivity = 0.036). Evaluation of the O-methyl ether derivative of 4 suggested that the 3-hydroxymethyl substituent might be involved in a hydrogen-bond donor-type of interaction at a sterically compact region in the PNMT active site. The directionality of the steric bulk tolerance at both the PNMT active site and the alpha(2)-adrenoceptor appears to be the same. Since the presence of a hydrophilic electron-withdrawing substituent (such as NO2, SO2CH3, or SO2NH2) at the 7-position of THIQ reduced the binding affinity toward the alpha(2)-adrenoceptor, we investigated the combination of both a hydrophilic electron-withdrawing 7-substituent and a S-alkyl substituent on a THIQ nucleus. A synergistic effect in increasing the PNMT-inhibitory potency of the THIQ nucleus and reducing the affinity toward the alpha(2)-adrenoceptor was observed with this 3,7-disubstitution. Remarkably, 7-aminosulfonyl-3-hydroxymethyl-THIQ (12; PNMT K-i = 0.34 mu M, alpha 2 K-i = 1400 mu M, selectivity = 4100) displayed a 23-680-fold enhanced selectivity over the parent compounds 27 (SK&F 29661; PNMT K-i = 0.55 mu M, alpha 2 K-i = 100 mu M, selectivity = 180) and 4 (selectivity = 6.0) and is thus the most selective PNMT inhibitor yet reported.
• Synthesis of<i>N</i> ^α-Fmoc<i>N</i>,<i>N</i>′-bis-Boc-5-, 6- and 8-guanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic Acid (5-GTIC, 6-GTIC and 8-GTIC)
  作者：Vincenzo Santagada、Beatrice Severino、Francesco Frecentese、Elisa Perissutti、Sara Terracciano、Ferdinando Fiorino、Donatella Cirillo、Severo Salvadori、Gianfranco Balboni、Giuseppe Caliendo

  DOI：10.1055/s-2004-834875

  日期：——

  N α-Fmoc N,N′-bis-Boc-5-, 6- and 8-guanyl-Tic-OH (5-, 6- and 8-GTIC), three conformationally constrained amino acids with basic properties, have been synthesized by microwave irradiation. These amino acids combine the basic features of arginine with the aromatic features of phenylalanine and can be utilized as functional tools in peptide-based structure-activity studies.

  通过微波辐照合成了 N δ±-Fmoc-N,N′-双叔丁氧羰基-5-、6-和 8-鸟嘌呤基-Tic-OH（5-、6-和 8-GTIC）这三种具有基本特性的构象受限氨基酸。这些氨基酸结合了精氨酸的基本特性和苯丙氨酸的芳香特性，可用作基于多肽的结构-活性研究的功能工具。