A compound has an intestinal phosphate transporter (NPT-IIb) inhibitory action and is useful as an active ingredient of an agent for treating hyperphosphatemia, preventing hyperphosphatemia, or both. The compound is a tetrahydrobenzothiophene compound. A pharmaceutical composition for treating hyperphosphatemia includes the compound or salt thereof. A method of treating hyperphosphatemia includes administering to a subject an effective amount of the compound or salt thereof.
New Amino-protective Reagents for<i>t</i>-Butoxycarbonylation and Benzyloxycarbonylation of Amines and Amino Acids
作者:Sunggak Kim、Jae In Lee、Kyu Yang Yi
DOI:10.1246/bcsj.58.3570
日期:1985.12
New amino-protective reagents for t-butoxycarbonylation and benzyloxycarbonylation of amines and aminoacids have been developed. t-Butyl 2-pyridyl carbonate and t-butyl S-(2-pyridyl) thiocarbonate react cleanly with various amines and aminoacids to afford N-Boc amines and N-Boc aminoacids in high yields. Benzyl 2-pyridyl carbonate and O-benzyl S-(2-pyridyl) thiocarbonate are also found to be very