[4-[(E)-2-(1H-indazol-3-yl)ethenyl]phenyl]-piperazin-1-ylmethanone
[4-[(E)-2-(1H-indazol-3-yl)vinyl]phenyl]-piperazin-1-yl-methanone
[4-[(E)-2-(1H-indazol-3-yl)vinyl]phenyl]-(1-piperazinyl)methanone
[4-[(E)-2-(1H-indazol-3-yl)ethenyl]phenyl]-piperazin-1-yl-methanone