Research Article

Synthesis of 1,8-Naphthyridine Derivatives under Ultrasound Irradiation and Cytotoxic Activity against HepG2 Cell Lines

Table 1

Synthesis of pyrazole derivatives 3a-b,  4,  and 5 under both ultrasonic irradiation and conventional method.

CompoundUltrasonic irradiationConventional
Time (min.)Yield %Time (min.)Yield %

3a10986093
3b10976091
410936087
5259618083