The negative secondary ion mass spectrometry,in combination with the stereoselectivederivatizations with substituted boronic acid RB(OH)_2,was used in the anal
Background: The standard treatment for spinal cord compression caused by metastatic cancer is corticosteroids and radiotherapy. The role of surgery has not been
Some new pyridazinone derivatives(3) were synthesized through addition of antipyrin to β-aroylacrylic acids (1) followed by cyclization of the adducts. Reacti