Abstract: Novel compounds of the formula ##STR1## wherein R is hexahydrobenzoyl, isovaleryl or 2-methylbutyryl, and pharmaceutically acceptable salts thereof. The novel compounds designated as Trienomycins A, B and C are produced by culturing a microorganism belonging to genus Streptomyces, specifically Streptomyces sp. 82-16 FERM BP-939 in a medium, accumulating the new compounds in the medium and isolating the new compounds therefrom, and if required converted to a salt thereof. These compounds have antitumor activity and cytocidal activity.

Abstract: The thermoplastic polymeric molding composition of the invention has good moldability in shaping by injection molding, extrusion molding and compression molding and capable of giving shaped articles having good machinability in mechanical working such as cutting, grinding and latching. The composition is compounded from 2 to 70 parts by weight of a thermoplastic polymer such as a polyamide resin and from 98 to 30 parts by weight of a metallic filler such as zinc powder and zinc oxide powder having a surface coated with a water repellent agent such as silane coupling agents, titanate coupling agents and silicone fluids in a specified amount. A part of the above mentioned particulate filler may optionally be replaced with a fibrous filler such as glass fibers and carbon fibers so that the shaped articles of the molding composition may be imparted with increased impact strength.

Abstract: Antibiotic 82-85-8A, or a pharmacologically acceptable non-toxic salt thereof, having the following physicochemical properties:(1) Elementary analysis: C.sub.31 H.sub.47 N.sub.8 O.sub.10 Cl (determined by high resolution mass spectrometry)(2) Molecular weight: 726.5 (determined by field desorption mass spectrometry and calculated from elementary analysis)(3) Melting point: 162.degree.-167.degree. C. (partially immersed at 160.degree. C., completely melted at 167.degree. C., no browning)(4) Specific rotation: [.alpha.].sub.D.sup.20 =-56.degree. (c=0.24, methanol)(5) Ultraviolet absorption spectrum (in methanol): shown in FIG. 1(6) Infrared absorption spectrum (KBr): shown in FIG. 2(7) Solubility:soluble: chloroform, dichloromethane, ethyl acetate, methanol, ethanol,slightly soluble: acetone,insoluble: hexane, water;(8) Color reaction:Positive: iodine, sulfuric acid, Dragendorf reactionNegative: ninhydrin, ferric chloride(9) Nature: weakly basic substance.