Disclosed are malate salts of N-(4-{ [6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)- N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide, including a (L)-malate salt, a (D)- malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{ [6,7-bis(methyloxy)quinolin-4-y1]oxy}phenyl)-N′-(4-fluorophenyl)- cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{ [6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-ffuorophenyl)cyclopropane- 1, 1 -dicarboxamide.

Disclosed are malate salts of N-(4-{ [6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)- N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide, including a (L)-malate salt, a (D)- malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{ [6,7-bis(methyloxy)quinolin-4-y1]oxy}phenyl)-N′-(4-fluorophenyl)- cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{ [6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-ffuorophenyl)cyclopropane- 1, 1 -dicarboxamide.

Disclosed are malate salts of N-(4-{[6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclo-propane-1,1-dicarboxamide, including a (L)-malate salt, a (D)-malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)-cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide.

Disclosed are malate salts of N-(4-{[6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclo-propane-1,1-dicarboxamide, including a (L)-malate salt, a (D)-malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)-cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide.

A compound of formula (I), or a pharmaceutically acceptable salt thereof, for use in the treatment of multiple myeloma.

##STR00001##

A compound of formula (I), or a pharmaceutically acceptable salt thereof, for use in the treatment of multiple myeloma.

##STR00001##

Disclosed are malate salts of N-(4-{[6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclo-propane-1,1-dicarboxamide, including a (L)-malate salt, a (D)-malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)-cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide.

Disclosed are malate salts of N-(4-{[6,7-bis(methyloxy)-quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclo-propane-1,1-dicarboxamide, including a (L)-malate salt, a (D)-malate salt, a (DL) malate salt, and mixtures thereof; and crystalline and amorphous forms of the malate salts. Also disclosed are pharmaceutical compositions comprising at least one malate salts of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)-cyclopropane-1,1-dicarboxamide; and methods of treating cancer comprising administering at least one malate salt of N-(4-{[6,7-bis(methyloxy)quinolin-4-yl]oxy}phenyl)-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide.

Compounds of formula (I) inhibit HDAC activity: ##STR00001##
wherein A, B and D independently represent ═C— or ═N—; W is a divalent radical —CH═CH— or CH.sub.2CH.sub.2—; R.sub.1 is an ester group; R.sub.2 is the side chain of a natural or non-natural alpha-amino acid; z is 0 or 1; and Y, L.sup.1, and X.sup.1 are as defined in the claims.

Compounds of formula (I) inhibit HDAC activity: ##STR00001##
wherein A, B and D independently represent ═C— or ═N—; W is a divalent radical —CH═CH— or CH.sub.2CH.sub.2—; R.sub.1 is an ester group; R.sub.2 is the side chain of a natural or non-natural alpha-amino acid; z is 0 or 1; and Y, L.sup.1, and X.sup.1 are as defined in the claims.