Pulmonary Accumulation of Neutral Diamine Dithiol Complexes of Technetium‐99m
作者:Susan Z. Lever、Su‐Yuan Sun、Ursula A. Scheffel、Florence A. Kaltovich、Kwamena E. Baidoo、Howard Goldfarb、Henry N. Wagner
DOI:10.1002/jps.2600830609
日期:1994.6
Twenty-two neutral, lipid-soluble 99mTc complexes have been synthesized from diaminedithiol (DADT) ligands which vary in alkyl substitution pattern on nitrogen and carbon. The logarithm of the partition coefficients (log PC), as well as the capacity factor k', of the purified complexes increased linearly with molecular weight. The biodistribution of these complexes was determined in normal mice, and
Borohydride reduction of imidazolidino[1,2-d]dithiadiazepines
作者:Nicholas Bodor、Ernö Koltai、László Prókai
DOI:10.1016/s0040-4020(01)81573-8
日期:1992.6
Imidazolidino[1,2-d]dithiadiazepines are converted to he ten-membered saturated heterocycles via borohydride reduction in acidic media or using "in situ" generated borane. Reductive alkylation in acetic or propionic acid as a solvent represents a significant side reaction. Relatively stable boron compounds are identified as intermediates which yield the saturated heterocycles upon acidic hydrolysis.