A compound represented by the formula (I) or a salt thereof:
wherein a ring Z is a 5 to 6-membered heteroaromatic ring having one or two heteroatoms in the ring; X
1
is a hydrogen atom, a hydroxy group, a hydroxy C
1-6
alkyl group, —B(OH)
2
, a boronate ester group, a cyclic boronate ester group, a boranyl group, a cyclic boranyl group, —BF
3
M
n1
, —Sn(R
12
)(R
13
)(R
14
), a leaving group, a carboxy group, a formyl group, or —NR
16
R
17
; and X
2
is a hydrogen atom or —CO
2
R
18
.
The present invention provides an antifungal agent represented by the formula:
[wherein A
1
represents a 3-pyridyl group which may have a substituent, a quinolyl group which may have a substituent, or the like; X
1
represents a group represented by the formula —NH—C(═O)—, a group represented by the formula —C(═O)—NH—, or the like; E represents a furyl group, a thienyl group, a pyrrolyl group, a phenyl group, a pyridyl group, a tetrazolyl group, a thiazolyl group or a pyrazolyl group; with the proviso that A
1
may have 1 to 3 substituents, and E has one or two substituents].
Disclosed is an antimalarial agent containing a compound represented by the formula:
[wherein A
1
represents a 3-pyridyl group that may have a substituent, a 6-quinolyl group that may have a substituent, or the like; X
1
represents a group represented by the formula —C(═O)—NH— or the like; E represents a furyl group, a thienyl group or a phenyl group;
with the proviso that A
1
may have one to three substituents, and E has one of two substituents] or a salt thereof or hydrates thereof.
The present invention provides an antifungal agent that has superior antifungal action and is also superior in terms of physical properties, safety and metabolic stability. The present invention discloses a compound represented by the formula (I):
(wherein X represents an oxygen atom, a sulfur atom or —NH—, R
1
represents a hydrogen atom, a halogen atom, a cyano group, an amino group or a substituent, and R
2
and R
3
independently represent a hydrogen atom, a halogen atom, a hydroxyl group or a substituent, except for a case in which R
2
and R
3
are both hydrogen atoms), and an antifungal agent containing the above compound.
The present invention provides an antifungal agent represented by the formula:
wherein A
1
represents a 3-pyridyl group which may have a substituent, a quinolyl group which may have a substituent, or the like; X
1
represents a group represented by the formula —NH—C(═O)—, a group represented by the formula —C(═O)—NH—, or the like; E represents a furyl group, a thienyl group, a pyrrolyl group, a phenyl group, a pyridyl group, a tetrazolyl group, a thiazolyl group or a pyrazolyl group; with the proviso that A
1
may have 1 to 3 substituents, and E has one or two substituents.