Abstract: The present invention concerns novel compounds having the general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are selected form the group consisting of hydrogen or lower alkyl having 1-4 carbon atoms, wherein R.sup.2 and R.sup.3 together with the N atom can also form a ring having 2-5 carbon atoms and wherein n is 0, 1 or 2, and pharmaceutically acceptable salts thereof.The compounds according to the invention are useful as anticancer agents.

Abstract: This invention relates to compositions substantially containing pulverized coal, water, polyelectrolyte and, optionally, a stabilizing agent. The polyelectrolyte is a water soluble polyethylene, optionally containing double bonds and/or branching points in the polymer chain, being directly substituted with (a) hydroxysulfonyloxy groups or (b) sulfo groups, (c) hydroxysulfonyloxy-lower alkyl groups which are partly or completely in salt form and optionally (d) substituents selected from hydroxy, lower alkyl, lower alkanoyloxy, carbamoyl, cyano, hydroxymethyl, chloro and phenyl, whereby the polyelectrolyte contains at most four different kinds of said optional substituents, and wherein the amount of sulfur of the polyelectrolyte is 2 to 25 percent by weight being calculated when the acid forming groups are present as free acids.