use constant  ATIME => 9;
use constant  MTIME => 10;
use constant  CTIME => 11;

my $dir = "\\\\Sn007a_srv\\c\$\\program files\\common files\\sysadmin\\log\\ApplicationSynchronizer";
my $time = CTIME;

my @files = map{ scalar localtime($_->[$time]). "\t" . $_->[0]} 
            sort{ $b->[$time] <=> $a->[$time] } 
            map{ [ $_, stat($_) ] } 
            grep { -f } glob ( "$dir\\*" );

print "$files[0]\n";