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.

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.

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.

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.

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.

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.

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.

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.

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.

Abstract: Disclosed is an efficient and widely-applicable method for commercially producing a thioether compound or a thiol compound which is useful as a pharmaceutical compound or a production intermediate of it. Specifically disclosed is a method for producing a thioether compound represented by the general formula [I] below or a salt thereof. This method is characterized in that a compound represented by the following general formula [III]: [III] (wherein X represents a bromine atom, a chlorine atom or a trifluoromethylsulfonyloxy group, and ring A represents an aryl group or a heteroaryl ring group) or a salt thereof is reacted with a thiol compound represented by the following general formula [II]: [II] or a salt thereof in the presence of a palladium compound such as Pd2(dba)3, a base such as i-Pr2NEt and a phosphorus compound represented by the following formula [AA].

Abstract: This invention is related to a method for producing 3-{4-[3-(1-pyrrolidinyl)propoxy]phenyl}-5-trifluoromethyl-4(3H)-quinazolinone comprising a step for reacting 2-methyl-5-trifluoromethyl-4H-3,1-benzoxazin-4-one with 4-[3-(1-pyrrolidinyl)propoxy]aniline or an acid-addition salt thereof, or 4-(1-cyclobutyl-4-piperidinoy9oxyaniline or acid addition salt thereof in the presence of an acid catalyst.

Abstract: Disclosed is an efficient and widely-applicable method for commercially producing a thioether compound or a thiol compound which is useful as a pharmaceutical compound or a production intermediate of it. Specifically disclosed is a method for producing a thioether compound represented by the general formula [I] below or a salt thereof. This method is characterized in that a compound represented by the following general formula [III]:[III] (wherein X represents a bromine atom, a chlorine atom or a trifluoromethylsulfonyloxy group, and ring A represents an aryl group or a heteroaryl ring group) or a salt thereof is reacted with a thiol compound represented by the following general formula [II]:[II] or a salt thereof in the presence of a palladium compound such as Pd2(dba)3, a base such as i-Pr2NEt and a phosphorus compound represented by the following formula [AA].

Abstract: The present invention relates to crystalline free base compound having the following formula: wherein R is an unsubstituted pyridyl methyl group or a pyridyl methyl group substituted by a hydroxy methyl group; or a pharmaceutically acceptable salt or a solvate thereof.

Abstract: The present invention provides a process for industrially advantageously producing a compound represented by the formula (I): or a pharmaceutically acceptable salt thereof, which is useful as an anticancer agent, and also provides a catalyst used for hydrogenation reaction in the process.

Abstract: A process for preparing indolopyrrolocarbazole derivatives [I] by trating a compound [V] with a base in an inert solvent to prepare a compound [IV], reacting the compound [IV] with a compound [III]to prepare a compound [II], and deblocking the compound [II]; intermediates [II], [III] and [IV]; and a process for preparing compounds [III]: [wherein Y1 is hydrogen, C1-4 alkyl, phenyl, benzyloxymethyl, or aralkyl; R1, R2, R3, R4, R5, and R6 are each independently a hydroxyl-protecting group; R7 and R8 are each independently hydrogen or a hydroxyl-protecting group; and X is an acid molecule]. The above process is a safe and easy industrial process for preparing indolopyrrolocarbazole derivatives [1] useful as antitumor agents.

Abstract: This invention relates to a process for preparation of an indolopyrrolocarbazole derivative [I] by treating a compound [V] with a base in an inert solvent to prepare a compound [IV], reacting the obtained compound [IV] with a compound [III] to prepare a compound [II] and then removing the protective groups of the compound [II], the preparation intermediates compound [II], compound [III] and compound [IV], and processes for preparation of the compound [III].