CRYSTAL FORM OF 7-AZASPIRO[4,5]DECANE-6,10-DIONE COMPOUND AND PREPARATION METHOD THEREFOR

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(11)

EP 4 461 727 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 153(4) EPC

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	15.01.2025 Bulletin 2025/03

(43)	Date of publication:
	13.11.2024 Bulletin 2024/46

(21)	Application number: 23746087.8

(22)	Date of filing: 16.01.2023

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International Patent Classification (IPC):

C07D 213/72^(2006.01)
A61K 31/435^(2006.01)
A61P 9/04^(2006.01)

C07D 213/60^(2006.01)
A61K 31/44^(2006.01)
A61P 9/10^(2006.01)

(52)	Cooperative Patent Classification (CPC):
	A61P 9/04; A61P 9/10; A61K 31/4418; C07D 213/74

(86)	International application number:
	PCT/CN2023/072433

(87)	International publication number:
	WO 2023/143205 (03.08.2023 Gazette 2023/31)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA
	Designated Validation States:
	KH MA MD TN

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Priority:

27.01.2022 CN 202210103134
23.08.2022 CN 202211017556

(71)	Applicant: Soter Biopharma Pte. Ltd.
	Singapore 179803 (SG)

(72)	Inventors:
	YAN, Xiaobing Shanghai 200131 (CN) LAI, Wei Shanghai 200131 (CN) QIAN, Wenyuan Shanghai 200131 (CN)

(74)	Representative: Cabinet Becker et Associés
	25, rue Louis le Grand 75002 Paris 75002 Paris (FR)

(54)	CRYSTAL FORM OF 7-AZASPIRO[4,5]DECANE-6,10-DIONE COMPOUND AND PREPARATION METHOD THEREFOR

(57) Disclosed in the present invention are a crystal form of a class of 7-azaspiro[4,5]decane-6,10-dione compounds and a preparation method therefor. Specifically disclosed are a method for preparing a compound of formula (I) and a crystal form thereof and the use of the compound and the crystal form thereof.