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Last Updated: December 14, 2024

Claims for Patent: 11,186,547

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Summary for Patent: 11,186,547

Title:	High-purity quinoline derivative and method for manufacturing same
Abstract:	Provided is a compound represented by formula (IV) or a salt thereof, wherein the content of the compound represented by formula (I) is 350 ppm by mass or less. ##STR00001##
Inventor(s):	Nakamura; Taiju (Kamisu, JP), Abe; Taichi (Kamisu, JP), Miyashita; Yusuke (Kamisu, JP), Kuroda; Hirofumi (Kamisu, JP), Ayata; Yusuke (Kamisu, JP), Akao; Atsushi (Kamisu, JP)
Assignee:	Eisai R&D Management Co., Ltd. (Tokyo, JP)
Application Number:	17/022,675
Patent Claims:	1. A methanesulfonate salt of a compound represented by formula (IV), wherein the content of a compound represented by formula (I) is 152.1 ppm by mass or less ##STR00046## 2. A methanesulfonate salt of a compound represented by formula (IV), wherein the content of a compound represented by formula (I) is 120 ppm by mass or less ##STR00047## 3. A methanesulfonate salt of a compound represented by formula (IV), wherein the content of a compound represented by formula (I) is 114 ppm by mass or less ##STR00048## 4. A methanesulfonate salt of a compound represented by formula (IV), wherein the content of a compound represented by formula (I) is 93.0 ppm by mass or less ##STR00049## 5. The methanesulfonate salt of a compound represented by formula (IV) according to claim 1, wherein the content of a compound represented by formula (I) is 52 ppm by mass or more ##STR00050## 6. The methanesulfonate salt of a compound represented by formula (IV) according to claim 2, wherein the content of a compound represented by formula (I) is 52 ppm by mass or more ##STR00051## 7. The methanesulfonate salt of a compound represented by formula (IV) according to claim 3, wherein the content of a compound represented by formula (I) is 52 ppm by mass or more ##STR00052## 8. The methanesulfonate salt of a compound represented by formula (IV) according to claim 4, wherein the content of a compound represented by formula (I) is 52 ppm by mass or more ##STR00053##

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