A series of novel guanidine derivatives were synthesized in three steps and their anti-inflammatory activities in vitro and in vivo evaluated. 2-Aminopyridin-3-ol (1) was reacted with thiophosphoryl chloride (2) to give a monochloride (3). It was further reacted with cyanamide to afford the corresponding cyanamine (4), which was subsequently reacted with different heterocyclic amines to form th...

Hydration products of calcium silicates and calcium aluminates often are difficult to identify by X-ray methods. In this study the hydration products of the aluminate phase especially under the influence of additional chloride ions were studied. Special X-ray measurement conditions must be applied for accurate identification including 1. In situ control of relative humidity 2. Exclusion of CO2 ...

The structure of iodine monochloride (ICl) intercalated into graphite (GIC) has been revisited, and a stage 1 stoichiometry about 10 carbon atoms to ICl molecule is determined. Intercalation proceeds readily at room temperature without additional energy input. A chainlike alternating halogen species proposed for the intercalation layer based on detailed Raman spectroscopic analysis ab initio ca...