1. A therapeutic composition having progestational activity comprising as active ingredient a 17-aliphatic carboxylic acid ester of 17.alpha.-ethynyl-18-methyl-19-nortestosterone and a pharmaceutical carrier for said compound.
Dithioketal derivatives of 13-polycarbonalkylgon-4-en-3-ones
申请人:Smith; Herchel
公开号:US04005078A1
公开(公告)日:1977-01-25
Novel 3-thioketals of 13-polycarbonalkyl-17-ethynyl-17-hydroxygon-4-ene and 13-polycarbonalkyl-17-chlorethynyl-17-hydroxygon-4-ene, with improved separation of activities, i.e. maximizing progestational and minimizing androgenic action, are prepared from the corresponding 3-carbonyl compounds by treatment with dithioethylene ketal in the presence of an acid catalyst.
Process for the preparation of (Z)-17.alpha.-halovinyl steroids
申请人:Schering Aktiengesellschaft
公开号:US04885117A1
公开(公告)日:1989-12-05
(Z)-17.alpha.-halovinyl steroids of general Formula I ##STR1## wherein . . . . is a single bond or a double bond, V is a carbon-to-carbon bond or a methylene group, R.sub.1 is a hydrogen atom or a methyl group, X is a chlorine atom, a bromine atom or an iodine atom, and A symbolizes the remainder of the steroid molecule, are prepared by hydrogenating a 17.alpha.-haloethynyl steroid of formula II with diimide. ##STR2## wherein . . . , V, R.sub.1, X and A have the meanings given above. The compounds of Formula I include both known and novel compounds, all of which are pharmacologically active.
Bioerodible implant for long-term drug delivery and associated methods of manufacture and use
申请人:Gesea Biosciences Inc.
公开号:US10188602B2
公开(公告)日:2019-01-29
A drug delivery system is provided in the form of a controlled release, bioerodible pellet for subdermal implantation. The pellet is bioerodible, and provides for the sustained release of a pharmacologically active agent over an extended time period. As such, the drug delivery system finds significant utility in chronic drug administration. Bioerosion products are water soluble, bioresorbed, or both, obviating the need for surgical removal of the implant. Methods for manufacturing and using the drug delivery system are also provided.
Bioerodible contraceptive implant and methods of use thereof
申请人:Gesea Biosciences Inc.
公开号:US10406099B2
公开(公告)日:2019-09-10
A contraceptive drug delivery system is provided in the form of a controlled release, bioerodible pellet for subdermal implantation. The pellet is bioerodible, and provides for the sustained release of a contraceptive agent over an extended time period. Bioerosion products are water soluble, bioresorbed, or both, obviating the need for surgical removal of the implant. Methods of using the drug delivery system, including in female contraception, are also provided.