methyl (2E,4R,5R,6E)-4-(mesyloxy)-5-isopropyl-7-<(5R)-N-<(tert-butyloxy)carbonyl>-2,2-dimethyl-4-thiazolidinyl>-2,6-heptadienoate | 219914-25-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: methyl (2E,4R,5R,6E)-4-(mesyloxy)-5-isopropyl-7-<(5R)-N-<(tert-butyloxy)carbonyl>-2,2-dimethyl-4-thiazolidinyl>-2,6-heptadienoate
• 英文别名: tert-butyl (4R)-4-[(1E,3R,4R,5E)-7-methoxy-4-methylsulfonyloxy-7-oxo-3-propan-2-ylhepta-1,5-dienyl]-2,2-dimethyl-1,3-thiazolidine-3-carboxylate
• CAS: 219914-25-7
• 化学式: C₂₂H₃₇NO₇S₂
• 分子量: 491.67
• InChiKey: LRNVLXNZMPEIPA-RGWJKQSBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  32
• 可旋转键数：
  11
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  133
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  methyl (2E,4R,5R,6E)-4-(mesyloxy)-5-isopropyl-7-<(5R)-N-<(tert-butyloxy)carbonyl>-2,2-dimethyl-4-thiazolidinyl>-2,6-heptadienoate 在 lithium hydroxide 、 三氟化硼乙醚 作用下， 以 1,4-二氧六环 为溶剂， 反应 23.33h， 生成 (2S,3Z,5S,6E)-2-(phenylmethyl)-5-isopropyl-7-<(5R)-N-<(tert-butyloxy)carbonyl>-2,2-dimethyl-4-thiazolidinyl>-2,6-heptadienoic acid
  参考文献：
  名称：

  Synthesis of Sulfur-Containing Olefinic Peptide Mimetic Farnesyl Transferase Inhibitors Using the Nozaki−Hiyama−Kishi Reaction and Cuprate S_N2‘ Displacements

  摘要：

  Syntheses of the potent sulfur-containing tetrapeptide mimetic farnesyl transferase inhibitors B956 (22) and B957 (23) are described. The two double bonds in 22 and 23 were constructed by application of iterative NHK and cuprate S(N)2' reactions. Normal syn NHK reaction and substrate-dependent syn and anti-S(N)2' diastereoselectivities accompanied by exclusive E-olefin selectivity were observed for the first NHK iteration (1 --> 4). In the second iteration, unexpected epimerization and a strong preference for syn diastereoselectivity was observed for the NHK reaction (5b --> 7a + 9a) while an unusual Z-olefin was observed for the S(N)2' reaction (7b --> 11). Deprotection conditions were optimized to ensure high purity and yield of the final aminothiol compounds.

  DOI：

  10.1021/jo981892c
• 作为产物：
  描述：

  (2R,3E)-2-isopropyl-4-<(5R)-N-<(tert-butyloxy)carbonyl>-2,2-dimethyl-4-thiazolidinyl>-3-butenol 在 chromium dichloride 、 bis(1,5-cyclooctadiene)nickel (0) 、 草酰氯 、 TEA 、 二甲基亚砜 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 0.84h， 生成 methyl (2E,4R,5R,6E)-4-(mesyloxy)-5-isopropyl-7-<(5R)-N-<(tert-butyloxy)carbonyl>-2,2-dimethyl-4-thiazolidinyl>-2,6-heptadienoate
  参考文献：
  名称：

  Synthesis of Sulfur-Containing Olefinic Peptide Mimetic Farnesyl Transferase Inhibitors Using the Nozaki−Hiyama−Kishi Reaction and Cuprate S_N2‘ Displacements

  摘要：

  Syntheses of the potent sulfur-containing tetrapeptide mimetic farnesyl transferase inhibitors B956 (22) and B957 (23) are described. The two double bonds in 22 and 23 were constructed by application of iterative NHK and cuprate S(N)2' reactions. Normal syn NHK reaction and substrate-dependent syn and anti-S(N)2' diastereoselectivities accompanied by exclusive E-olefin selectivity were observed for the first NHK iteration (1 --> 4). In the second iteration, unexpected epimerization and a strong preference for syn diastereoselectivity was observed for the NHK reaction (5b --> 7a + 9a) while an unusual Z-olefin was observed for the S(N)2' reaction (7b --> 11). Deprotection conditions were optimized to ensure high purity and yield of the final aminothiol compounds.

  DOI：

  10.1021/jo981892c