97682-44-5Relevant articles and documents
Preparation method of irinotecan hydrochloride
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Paragraph 0019; 0022; 0025; 0028; 0031, (2020/05/30)
The invention relates to a preparation method of irinotecan hydrochloride. The preparation method comprises the following steps: a) enabling 4-piperidylpiperidine and N, N'-carbonyldiimidazole to react with 7-ethyl-10-hydroxycamptothecine in an aprotic solvent containing a hemp and cotton resin compound to generate an irinotecan monomer, and b) adding water to dissolve the irinotecan monomer, adding a hydrochloric acid solution to adjust the pH value to 2-3, adding acetone of which the volume is 3-5 times that of the water, carrying out crystallizing, filtering and recrystallizing with a mixedsolvent of acetone and water, and carrying out vacuum drying to obtain the irinotecan hydrochloride finished product. Compared with the prior art, according to the invention, in preparatuion of irinotecan hydrochloride, no high-toxicity dangerous reagent is used, the N, N-dimethylformamide with relatively stable commercial easy-to-obtain property is used, a carbonyl group is introduced into N, N'-carbonyldiimidazole, an irinotecan monomer is obtained through a one-step reaction, the harsh condition that N, N'-carbonyldiimidazole needs to be anhydrous is avoided through cooperation with a hempand cotton resin compound, the reaction process is greatly simplified, the production period is shortened, and the preparation method has obvious industrial production advantages.
A preparation method of irinotecan hydrochloride (by machine translation)
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, (2019/06/27)
The invention relates to a preparation method of irinotecan hydrochloride. Its steps are: parent ring to camptothecin as raw material generated by the reaction with the aldehyde 7 - ethyl camptothecin; hydrogen peroxide oxidation then N - oxide - 7 - ethyl camptothecin; by the illumination rearrangement 7 - ethyl - 10 - hydroxy camptothecin; 4 - piperidyl with dimethyl carbonate reaction to produce 4 - piperidyl carbonic acid methyl ester; 7 - ethyl - 10 - hydroxy camptothecin with 4 - piperidyl carbonic acid methyl ester reaction generating irinotecan monomer; irinotecan monomers with hydrochloric salt to obtain the finished product of the irinotecan hydrochloride. Compared with the prior art, the present invention avoid the use of phosgene in the reaction process, chloroform poisonous substance, in production with safe, convenient, less pollution and the like; in addition, the synthetic method avoids the need of the prior process in the defects of the chromatographic column separation and purification, reduces the production cost of the irinotecan, has great economic benefit. (by machine translation)
Irinotecan-cholesterol succinic acid simple lipid ion pair, liposome and preparation method and application thereof
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Paragraph 0045; 0046; 0047, (2018/10/11)
The invention discloses an irinotecan-cholesterol succinic acid simple lipid ion pair, a liposome and a preparation method and application thereof. The cholesterol succinic acid simple lipid is used as a counter-ionic agent, and the active proton of carboxyl in the cholesterol succinic acid simple lipid structure transfers to the nitrogen of irinotecan amino group, a coordination bond is formed, an ion pair is formed with irinotecan, so that the lipid solubility of irinotecan is improved, and the simple preparation method is easily used for packaging the drug on a phospholipid layer of the liposome, and the drug loading and packaging efficiency are improved. According to the irinotecan-cholesterol succinic acid simple lipid ion pair, the liposome and the preparation method and applicationthereof, the hydrophobic ion pair technology is combined with the nano drug delivery system, the lipid solubility of the insoluble drugs is improved, nano-preparations are developed, the complexity ofthe preparation process is simplified, and the irinotecan-cholesterol succinic acid simple lipid ion pair, the liposome and the preparation method and application thereof is conducive to expanding the industrial production. In addition, irinotecan ion pair and the liposome releases faster in the meta-acid environment, certain pH sensitivity is achieved, good antitumor effect and safety are achieved, and good application is achieved.
Visible-Light-Induced Radical Cascade Cyclization: Synthesis of (20S)-Camptothecin, SN-38 and Irinotecan
Yuan, Yao,Dong, Wuheng,Gao, Xiaoshuang,Xie, Xiaomin,Curran, Dennis P.,Zhang, Zhaoguo
, p. 1035 - 1040 (2018/09/25)
(20S)-Camptothecin, irinotecan and SN-38 were successfully synthesized by a photocatalyzed radical cascade cyclization from an N-propargyl iodopyridinone and an arylisonitrile under visible light with a ruthenium catalyst. This synthetic method provided a useful entry into composing camptothecin family of antitumor agents in good yields under mild reaction conditions without the use of heavy metal reagents.
Method for producing irinotecan
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Paragraph 0041, (2018/10/10)
PROBLEM TO BE SOLVED: To provide a novel method for producing irinotecan using amines.SOLUTION: A method of producing irinotecan represented by the chemical formula (1) includes reacting 7-ethyl-10-hydroxycamptothecin with 1-chlorocarbonyl-4-piperidinopiperidine or hydrochloride thereof in the presence of a nonaromatic tertiary amine having 5 or less carbon atoms.
Method for the synthesis of irinotecan
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Paragraph 0050-0052; 0053-0055, (2015/06/17)
The present invention relates to a method for the synthesis of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin (i.e. iriniotecan), comprising: (a) preparing 10-[4-(1-piperidino)-1-piperidino]carbonyloxycamptotecin; and (b) selectively ethylating the compound of step (a) at the 7-position, thus resulting in the preparation of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin. The present invention is further directed to a method for the synthesis of 10-[4-(1-piperidino)-1-piperidino]carbonyloxycamptothecin (i.e. 7-des-ethyl-irinotecan) which is used as an intermediate in the synthesis of irinotecan.
Scalable synthetic route to 2-amino-5-hydroxypropiophenone: Efficient formal synthesis of irinotecan
Rao, A. V. Rama,Rao, Ramakrishna,Yadav,Khagga, Mukkanti
, p. 1661 - 1667 (2013/05/21)
2-Amino-5-hydroxypropiophenone, a key precursor in the total synthesis of irinotecan, has been synthesized. Regioselective nitration and a SNAr displacement are the key steps involved in this strategy, which is high yielding, is economical, and has been performed on a plant scale. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications1 to view the free supplemental file. Copyright Taylor & Francis Group, LLC.
NOVEL POLYMORPH OF IRINOTECAN HYDROCHLORIDE
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Page/Page column 5-6, (2012/02/02)
The present invention provides a novel crystalline form of irinotecan hydrochloride, process for its preparation and pharmaceutical compositions comprising it. Thus, for example, irinotecan hydrochloride trihydrate was dissolved in a mixture of methanol and methylene dichloride, the solvent was distilled off and then added acetone, and stirred for 18 hour at room temperature, filtered and dried to obtain irinotecan hydrochloride crystalline form H1.
PROCESS FOR THE MANUFACTURE OF IRINOTECAN HYDROCHLORIDE BY TOTAL SYNTHESIS
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Page/Page column 9, (2012/03/27)
Disclosed herein is a highly safe and easily scalable process for the production of 7-Ethyl- 10-hydroxycamptothecin and its conversion to Irinotecan hydrochloride by total synthesis.
PROCESS FOR THE PREPARATION OF 7-ETHYL-10-[4- (1-PIPERIDINO)- 1-PIPERIDINO] CARBONYLOXY-CAMPTOTHECIN HYDROCHLORIDE TRIHYDRATE
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Page/Page column 7, (2011/06/26)
The present invention relates to process for the preparation of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin hydrochloride trihydrate and process for the isolation of 1-chlorocarbonyl-4-piperidinopiperidine and novel crystalline form of 1-chlorocarbonyl-4-piperidinopiperidine and 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin.