Two new furostanol glucosides, named tribufurosides G and H, were isolated from Tribulus terrestris L. The structures of the two new furostanol glucosides were
Protein tyrosine phosphatases(PTPs) are crucial regulators of signal transduction. Among them, PTP-MEG2 is an intracellular enzyme of 593 amino acid residues wi
A series of trans-3-chloro-β-lactams was synthesized stereospecifically from imines and chloroacetyl chloride or a mixture of chloroacetyl chloride and nitroac