Abstract: The compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.

Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.

Abstract: The present disclosure provides a compound that exerts an anticancer action based on CHK1 inhibition. The present disclosure was completed by finding that a compound represented by formula (1) or a pharmaceutically acceptable salt thereof exhibits an excellent antitumor action by having a potent inhibitory action against CHK1: wherein R1, R2, L, V, W, and Q are as defined herein, X, Y, and Z each independently represent CR8 or a nitrogen atom, wherein X, Y, and Z are not simultaneously CR8, and R8 is as defined herein.

Abstract: The present disclosure provides a compound that exerts an anticancer action based on CHK1 inhibition. The present disclosure was completed by finding that a compound represented by formula (1) or a pharmaceutically acceptable salt thereof exhibits an excellent antitumor action by having a potent inhibitory action against CHK1: wherein R1, R2, L, V, W, and Q are as defined herein, X, Y, and Z each independently represent CR8 or a nitrogen atom, wherein X, Y, and Z are not simultaneously CR8, and R8 is as defined herein.

Abstract: The present invention relates to the compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, Ring A is cycloalkylene or the like, L is single bond or the like, and R is methyl or the like, or a pharmaceutically acceptable salt thereof, which has an anticancer effect by inhibiting the binding between a MLL fusion protein that is fused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present disclosure provides a compound that exerts an anticancer action based on CHK1 inhibition. The present disclosure was completed by finding that a compound represented by formula (1) or a pharmaceutically acceptable salt thereof exhibits an excellent antitumor action by having a potent inhibitory action against CHK1: wherein R1, R2, L, V, W, and Q are as defined herein, X, Y, and Z each independently represent CR8 or a nitrogen atom, wherein X, Y, and Z are not simultaneously CR8, and R8 is as defined herein.

Abstract: A process for producing a hydrate of a hydrochloride salt of 2,2?-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid of the formula: wherein the process comprises the following step: recrystallizing the hydrochloride salt of 2,2?-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid, in the presence of hydrochloric acid and a recrystallization solvent; wherein the recrystallization solvent is methanol, ethanol, 2-propanol, diethyl ether, ethyl acetate, benzene, toluene, acetone, dichloromethane, chloroform, hexane, dimethylformamide, acetonitrile, or water; or mixed solvent thereof.

Abstract: The present invention relates to the compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present invention relates to the compound of formula (I) wherein p is 1 or 2, R1 is —CF3 or the like, R2a, R2b, R3a, and R3b are hydrogen atom or the like, X is —C(?O)—or the like, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present invention relates to the compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present invention relates to the compound of formula (Ia) wherein a-d and p are 1 or 2, R1-R4 are hydrogen atom or the like, and R18 is —CF3 or the like, or a pharmaceutically acceptable salt thereof, which has an anticancer effect by inhibiting the binding between a MLL fusion protein that is fused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: This invention provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof. Specifically, the present invention provides a compound represented by formula (1) or a pharmaceutically acceptable salt thereof [Therein, A is O, S, or N—R6; ring G is a 5-membered or 6-membered aromatic ring, etc., including 1-3 heteroatoms selected from O, S and N as constituent atoms; R1 and R2 are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C1-6 alkyl carbonyl group, etc.; R3, R4 and R5 are each independently a hydrogen atom, a halogen atom, or an optionally-substituted C1-6 alkyl carbonyl group, etc.; and R6 is a hydrogen atom or an optionally-substituted C1-6 alkyl group, etc.].

Abstract: The present invention relates to the compound of formula (I) wherein p is 1 or 2, R1 is —CF3 or the like, R2a, R2b, R3a, and R3b are hydrogen atom or the like, X is —C(?O)—or the like, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.

Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O)B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.

Abstract: The present invention relates to the compound of formula (1a) wherein p is 1 or 2, R1-R4 are hydrogen atom or the like, and a-d are 1 or 2, or a pharmaceutically acceptable salt thereof, which has an antitumor effect by inhibiting the binding between a MLL fusion protein that is infused with AF4, AF9, or the like, which is a representative fusion partner gene causing MLL leukemia, and menin.

Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.