Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Crystal form of lenvatinib mesylate and preparation method thereof

A technology of nimethanesulfonate and crystal form, which is applied in the fields of organic chemistry, organic chemistry, antitumor drugs, etc. There are safety and other issues, and the preparation method is simple and effective, easy to scale up production, and the effect of high solubility

Pending Publication Date: 2019-07-09
SICHUAN KELUN PHARMA RES INST CO LTD
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a crystal form of lenvatinib mesylate, which solves the problem that the crystal form of lenvatinib mesylate in the prior art has poor stability, safety risks, and cannot be produced on a large scale And other issues

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Crystal form of lenvatinib mesylate and preparation method thereof
  • Crystal form of lenvatinib mesylate and preparation method thereof
  • Crystal form of lenvatinib mesylate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0085] The invention provides a preparation method of the crystal form of lenvatinib mesylate, which comprises the following steps:

[0086] Step A: adding lenvatinib mesylate solid to a solvent to prepare a suspension; preferably, the solvent is selected from one or more of water, alcohols, ketones, alkanes, and ethers kind;

[0087] Step B: Add seed crystals to the suspension, add purified water dropwise, stir at a temperature of 20-30°C for 10-30 hours, then filter to obtain crystal slurry, and dry to constant weight to obtain the lenvatinib mesylate salt crystal form.

[0088] In the above preparation method of the present invention, the solvent may be a single solvent, or a mixture of two or more solvents, such as a mixture of water and alcohols, or a mixture of alcohols and ketones.

[0089] In a preferred embodiment, the solid form of lenvatinib mesylate is the solid form of lenvatinib mesylate, preferably an amorphous form.

[0090] In a preferred embodiment, the so...

Embodiment 1

[0123] Add 10g of lenvatinib mesylate solid to 400ml of methyl tert-butyl ether, stir at a speed of 300r / min, add 4ml of purified water dropwise, stir at 25°C for 12h, suction-filter the obtained crystal slurry, and store at a temperature of 45°C 1. Drying for 15 hours under a vacuum degree of -0.1Mpa, namely the crystalline form of derenvatinib mesylate, the purity is 99.4%, and the crystallization process yield is 91.0%.

[0124] Carry out XRPD analysis to the obtained lenvatinib mesylate crystal form, its X-ray powder diffraction is in diffraction angle 2θ=5.6,8.0,11.2,12.6,16.1,17.2,17.8,18.1,18.9,19.6, There are characteristic peaks at 19.8, 20.2, 20.7, 21.8, 22.1, 22.2, 22.9, 23.5, 23.8, 24.3, 25.1, 25.6, 26.3, 27.0, 28.3, 28.8, 29.4, 30.0, 30.8, and 31.6 degrees.

[0125] DSC analysis was performed on the obtained crystal form of lenvatinib mesylate, and it was analyzed that there were strong endothermic peaks at 108.1°C and 159.0°C.

[0126] The obtained crystal form ...

Embodiment 2

[0129] Add 10 g of lenvatinib mesylate solid to 400 ml of methyl tert-butyl ether, stir at a speed of 300 r / min, add 0.1 g of seed crystals, add dropwise 4 ml of purified water, stir at 20°C for 10 h, and filter the obtained crystals with suction. The slurry was dried at a temperature of 45° C. and a vacuum of -0.1 Mpa for 10 hours to obtain the crystalline form of derenvatinib mesylate with a purity of 99.6% and a crystallization yield of 90.0%.

[0130]Carry out XRPD analysis to the crystalline form of the obtained lenvatinib mesylate, the obtained XRPD spectrum is as follows figure 1 The relevant data are shown in Table 1.

[0131] Carry out DSC analysis to the crystal form of the obtained lenvatinib mesylate, such as figure 2 As shown, it has strong endothermic peaks at 108.1°C and 159.0°C.

[0132] Carry out TGA analysis to the crystal form of the obtained lenvatinib mesylate, such as figure 2 Shown, its water loss weight is 6.23%. Moisture determination by Karl Fis...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a crystal form of lenvatinib mesylate, a preparation method of the crystal form, a pharmaceutical composition containing the crystal form and application of the crystal form inpreparation of medicines for treating invasive and differentiated thyroid cancer. An X-ray powder diffraction pattern of the crystal form of lenvatinib mesylate comprises peaks at a diffraction angle(2) of about 16.1+ / -0.2 degrees, 17.8+ / -0.2 degrees, 18.8+ / -0.2 degrees, 25.0+ / -0.2 degrees and 25.4+ / -0.2 degrees.

Description

technical field [0001] The invention relates to a crystal form of lenvatinib mesylate and a preparation method thereof. Background technique [0002] Lenvatinib mesylate, also known as lenvatinib, is an anticancer drug developed by Japan's Eisai. It was approved by the FDA on February 13, 2015 for the treatment of aggressive and differentiated invasion. Patients with aggressive, differentiated thyroid cancer (DTC) who have disease progression following radioactive iodine therapy. The drug's chemical name is 4-[3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy]-7-methoxy-6-quinolinecarboxamide methanesulfonate, its mesylate salt The chemical formula is C 21 h 19 ClN 4 o 4 ·CH 4 o 3 S, the relative molecular mass is 522.96, the chemical structure formula is as follows: [0003] [0004] Lenvatinib mesylate is a multi-target inhibitor (mainly inhibits VEGFR1 (FLT1), VEGFR2 (KDR), VEGFR3 (FLT4), RTKs), which helps cancer cells grow and differentiate by blocking certai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07D215/48A61K31/47A61P35/00
CPCC07B2200/13C07D215/48
Inventor 王天明宫正易仕东骆伟曾德华郑小洲王利春王晶翼
Owner SICHUAN KELUN PHARMA RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com