6-Hydroxy-2-(4-hydroxyphenyl)-3-[4-(2-piperidinoethoxy)benzoyl]benzo[b]thio phene, its ethers and esters, and the physiologically acceptable acid addition salts thereof, are valuable antiestrogens and antiendrogens.
Derivatives of 2-phenyl-3-aroylbenzothiophenes and 2-phenyl-3-aroylbenzothiophene-1-oxides are useful as antifertility agents. Certain of these compounds also are useful in suppressing the growth of mammary tumors.
A group of 6-hydroxy-2-(4-hydroxyphenyl)-3-[4-(2-aminoethoxy)benzoyl]benzo[b]thiophen es are prepared by acylation of a methyl-protected starting compound followed by demethylation in a single reaction mixture.
Controlled release formulations useful in the prolonged treatment and control of microbial infections in animals are comprised of a microbial agent intimately dispersed throughout a copolymer derived from lactic acid and glycolic acid. A method for providing protection to animals for extended period ...
Lactic-glycolic copolymers having molecular weights of about 6000 to about 35000 are prepared by condensation of lactic acid and glycolic acid in the presence of readily removable strong acid ion-exchange resins.
Derivatives of 3-phenyl-4-aroyl-1,2-dihydronaphthalenes and 1-aroyl-2-phenylnaphthalenes are useful both as antifertility agents and in suppressing the growth of mammary tumors.
This invention describes a process for separating a biologically active polypeptide or protein in the form of its precursor from a mixture containing said precursor and impurities, which comprises contacting said precursor with a resin containing immobilized metal ions, said precursor comprising the ...