摘要:
An environmentally friendly process for the preparation of the 4-functionalized N—OR derivatives of 2,2,6,6-tetraalkylpiperidines involves the hydrogen peroxide of the corresponding N—H compound to form the corresponding N-oxyl derivative, reacting two equivalents of the N-oxyl compound with one equivalent of a compound having an allylic hydrogen, a benzylic hydrogen or an activated methine hydrogen to form one equivalent of the corresponding N—OH compound and one equivalent of the corresponding N—OR compound, and recycling the N—OH compound back to the corresponding N-oxyl compound using hydrogen peroxide or air.
摘要:
Compounds having the formula are useful for inhibiting protein kinases. Also disclosed are compositions which inhibit protein kinases and methods of inhibiting protein kinases in a patient.
摘要:
&bgr;-alanine compounds or a pharmaceutically acceptable salt thereof, which is useful as a glycoprotein IIB/IIIa antagonist, inhibitor of blood platelet aggregation and inhibitor of the binding of fibrinogen to blood platelet; a composition containing the same, a process for the preparation of the compound, and a process for the treatment of diseases caused by thrombus formation, for example, are provided.