Novel compounds of the formula ##SPC1## Wherein R.sub.1 is hydrogen or alkyl, R.sub.2 is hydrogen or acyl, the diastereomers, and the pharmaceutically acceptable salts. The compounds are useful as antihypotensive agents and as intermediates for preparing prostaglandins possessing therapeutic properties.

This invention relates to an animal litter comprising a porous, inert solid substrate and a dry particulate polymer. When animal urine contacts the animal litter there are produced gelled agglomerates containing the animal urine, polymer and solid substrate. The gelled agglomerates have sufficient mechanical integrity to be conveyed as discrete entities thereby permitting animal urine to be physically removed from a litter box containing the animal litter of the present invention.

The outer convex surface of a contraceptive diaphragm is texturized in omnidirectional manner to simulate the ruggae of the vagina. The texturization takes various forms including concentric rings which can be regular or irregular or symmetrical arrangements of discrete projections.

A method and apparatus for producing a color strip display of eddy current test data from a signal produced by an eddy current detector and which varies in amplitude and in phase relative to a reference signal as the detector is displaced relative to a test body. In order to produce the display, a signal representative of the relative displacement of the detector, a signal representative of the amplitude of the detector signal, and a signal representative of the relative phase of the detector si...

Novel polypeptide compositions are provided which inhibit human tumor cell growth, which may or may not stimulate autophosphorylation of pp60 src and induce the release of a 52 kDal polypeptide from neoplastic cells. Individual polypeptides may be isolated from mammalian blood platelets by selected extraction and purification procedures, may be synthesized or produced by hybrid DNA technology.

Novel polypeptide compositions are provided which inhibit human tumor cell growth, which may or may not stimulate autophosphorylation of pp60 src and induce the release of a 52kDal polypeptide from neoplastic cells. Individual polypeptides may be isolated from mammalian blood platelets by selected extraction and purification procedures, may be synthesized or produced by hybrid DNA technology.

Mycotrienin-related compounds called the T-23-X, -XI, -XII, -XIII and -XIV. These compounds are isolated and characterized by structural formula and other identifying data. They are useful in the treatment of tumors.

Alkali metal aluminum tetraalkyls can alkylate tetraalkyl silicates and alkyltrialkoxysilanes, Si(OR).sub.4 and RSi(OR).sub.3, respectively. The product in each case is predominately the dialkylate. With tetraalkyl silicates, both of the alkyl groups bonded to silicon in the dialkylate product are derived from the metal tetraalkyl. With alkyltrialkoxysilanes, the silicon atom in the dialkylate product is (a) bonded to one alkyl group detained from the metal tetraalkyl, and (b) is also bonded to ...

The novel compounds are provided with good antibacterial and antitumour activity.

New and improved briquettes and a process for using the briquettes for both flavoring and heating food when ignited whereby the briquettes have a residual amount of olive oil which, upon ignition, not only heats food but flavors it with the oiled vapors.