| 1332712-95-4

• 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
• CAS: 1332712-95-4
• 化学式: C₂₈H₄₂NO₇
• 分子量: 504.644
• InChiKey: GMNSOMFTRBABRH-DKZCMSBHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.57
• 重原子数：
  36.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  121.13
• 氢给体数：
  3.0
• 氢受体数：
  7.0

反应信息

• 作为产物：
  描述：

  泼尼松龙 、 左旋肉碱 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以54%的产率得到
  参考文献：
  名称：

  Synthesis, Transport and Mechanism of a Type I Prodrug: l-Carnitine Ester of Prednisolone

  摘要：

  Aerosol glucocorticoid medications have become more and more important in treating BA (bronchial asthma). Although these agents are dosed to directly target airway inflammation, adrenocortical suppression and other systematic effects are still seen. To tackle this problem in a novel way, two L-carnitine ester derivatives of prednisolone (as the model drug), namely, PDC and PDSC, were synthesized to increase the absorption of prednisolone across the human bronchial epithelial BEAS-2B cells by the organic cation/carnitine transporter OCTN2 (SLC22A5) and then to slowly and intracellularly release prednisolone. The transport of prednisolone, PDC and PDSC into the. human bronchial epithelial BEAS-2B cells was in the order PDSC > prednisolone > PDC at 37 degrees C. It was found that PDSC displayed 1.79-fold increase of uptake compared to prednisolone. Transport of PDSC by BEAS-2B was temperature-, time-, and Na+-dependent and saturable, with an apparent K-m value of 329.74 mu M, suggesting the involvement of carrier-mediated uptake. An RT-PCR study showed that organic cation/carnitine transporters OCTN1 and OCTN2 are expressed in BEAS-2B cells, but little in HEK293T cells. The order of uptake by HEK293T was prednisolone > PDC > PDSC. In addition, the inhibitory effects of organic cations such as L-carnitine, ergothioneine, TEA(+) and ipratropium on PDSC uptake in BEAS-2B cells were in the order L-carnitine > ipratropium > TEA(+) > ergothioneine, whereas their inhibitory effects on PDSC uptake in HEK293T cells were negligible. Finally, in vitro LPS-induced IL-6 production from BEAS-2B was more and longer suppressed by PDSC than prednisolone and PDC. All of these results suggested PDSC may be an attractive candidate for asthma treatment.

  DOI：

  10.1021/mp100412z