在本研究中,通过一个简单而温和的两步程序就完成了一系列结构上新的2-二茂铁基取代的碘苯并呋喃杂化物的首次构建,其中涉及在生态友好的PEG-中使用N-碘琥珀酰亚胺试剂对水杨醛进行碘化。室温下为400培养基,然后在回流的MeCN中与1-氯乙酰基二茂铁进行一锅Rap-Stoermer反应,并以K 2 CO 3为碱,PEG-400为活化添加剂。这些新合成的化合物属于一类新的二茂铁-苯并呋喃杂化物,可以很好地开发用于药物化学的化合物。
Provided herein are compounds of the formula (I):
as well as pharmaceutically acceptable salts thereof, wherein the substituents are as those disclosed in the specification. These compounds, and the pharmaceutical compositions containing them, are useful for the treatment of diseases such as, for example, obesity.
A novel group of radiolabelled diamines are provided, effective for pancreatic imaging and represented by the formula ##STR1## wherein n is 1 to 10; R.sub.1 and R.sub.2 are the same or different and are hydrogen, hydroxyl or lower alkyl having 1 to 6 carbon atoms; R.sub.3 is lower alkyl having 1 to 6 carbon atoms; and N' is a nitrogen atom forming part of a 4- to 8-membered heterocyclic ring containing one or two hetero atoms, one of which is said nitrogen, said heterocyclic ring being unsubstituted or substituted with one or more lower alkyl groups and pharmaceutically acceptable acid addition salts thereof.