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FU Zhiqin, XU Youfa, CHEN Bingchen, CHENG Dan, MA Juanjuan, CHEN Jianming. Synthesis and druggability study of triptolide stearate[J]. Journal of Pharmaceutical Practice and Service, 2017, 35(2): 141-145. doi: 10.3969/j.issn.1006-0111.2017.02.011
Citation: FU Zhiqin, XU Youfa, CHEN Bingchen, CHENG Dan, MA Juanjuan, CHEN Jianming. Synthesis and druggability study of triptolide stearate[J]. Journal of Pharmaceutical Practice and Service, 2017, 35(2): 141-145. doi: 10.3969/j.issn.1006-0111.2017.02.011

Synthesis and druggability study of triptolide stearate

doi: 10.3969/j.issn.1006-0111.2017.02.011
  • Received Date: 2016-12-30
  • Rev Recd Date: 2017-02-22
  • Objective To synthesize a lipophilic prodrug of triptolide (TP) and improve its druggability. Methods Triptolide stearate (TP-SA) was synthesized via the DMAP-catalyzed DCC method and identified by MS, 1H-NMR and 13C-NMR. The shake-flask method was used to study the oil/water partition coefficient. The preparations of TP and TP-SA liposomes and emulsions were compared. Their encapsulation efficiency and stability were investigated. Results TP-SA was synthesized successfully. Its log P in octanol/water system was 2.33. It was difficult to prepare TP liposome or emulsion. By contrast, TP-SA liposome and emulsion can be prepared successfully with the same formulation process. The particle size of TP-SA liposomes were about 90 nm and TP-SA emulsions were about 110 nm. The encapsulation efficiency was above 95%. Their stability were studied at 4℃ and 25℃. The preparation parameters, such as particle size and encapsulation efficiency, had no significant change in a week. Conclusion Triptolide stearate enhanced drug lipophilicity. Its druggability was improved significantly. These data can be used for the TP related drug design and development.
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Synthesis and druggability study of triptolide stearate

doi: 10.3969/j.issn.1006-0111.2017.02.011

Abstract: Objective To synthesize a lipophilic prodrug of triptolide (TP) and improve its druggability. Methods Triptolide stearate (TP-SA) was synthesized via the DMAP-catalyzed DCC method and identified by MS, 1H-NMR and 13C-NMR. The shake-flask method was used to study the oil/water partition coefficient. The preparations of TP and TP-SA liposomes and emulsions were compared. Their encapsulation efficiency and stability were investigated. Results TP-SA was synthesized successfully. Its log P in octanol/water system was 2.33. It was difficult to prepare TP liposome or emulsion. By contrast, TP-SA liposome and emulsion can be prepared successfully with the same formulation process. The particle size of TP-SA liposomes were about 90 nm and TP-SA emulsions were about 110 nm. The encapsulation efficiency was above 95%. Their stability were studied at 4℃ and 25℃. The preparation parameters, such as particle size and encapsulation efficiency, had no significant change in a week. Conclusion Triptolide stearate enhanced drug lipophilicity. Its druggability was improved significantly. These data can be used for the TP related drug design and development.

FU Zhiqin, XU Youfa, CHEN Bingchen, CHENG Dan, MA Juanjuan, CHEN Jianming. Synthesis and druggability study of triptolide stearate[J]. Journal of Pharmaceutical Practice and Service, 2017, 35(2): 141-145. doi: 10.3969/j.issn.1006-0111.2017.02.011
Citation: FU Zhiqin, XU Youfa, CHEN Bingchen, CHENG Dan, MA Juanjuan, CHEN Jianming. Synthesis and druggability study of triptolide stearate[J]. Journal of Pharmaceutical Practice and Service, 2017, 35(2): 141-145. doi: 10.3969/j.issn.1006-0111.2017.02.011
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