[EN] MACROMOLECULAR PRODRUG-BASED THERMOSENSITIVE INJECTABLE GEL AS A NOVEL DRUG DELIVERY PLATFORM<br/>[FR] GEL INJECTABLE THERMOSENSIBLE À BASE DE PRO-MÉDICAMENT MACROMOLÉCULAIRE EN TANT QUE NOUVELLE PLATEFORME D'ADMINISTRATION DE MÉDICAMENT
申请人:UNIV NEBRASKA
公开号:WO2020087057A1
公开(公告)日:2020-04-30
This application discloses prodrug-based thermosensitive gel ("ProGel") comprised of conjugates of dmg molecules with water-soluble polymeric carriers, which are capable of controlled release of the dmg molecules into the tissue of a subject. Use of the ProGel-Drug conjugates for treatment of various diseases or disorders and methods of preparing them are also disclosed.
C11 Modified Retrosteroids as Progesterone Receptor Modulator Compounds
申请人:Messinger Josef
公开号:US20080249075A1
公开(公告)日:2008-10-09
Retrosteroidal compounds corresponding to formula I, representing progesterone receptor modulators, and their production, and pharmaceutical preparations containing these compounds. These compounds are useful in the treatment of benign gynecological disorders such as endometriosis and uterine fibroids, as well as for female birth control and for hormone replacement therapy.
Selectivite de la reduction de l'androsten-4 dione-3,17 et de la progesterone par divers borohydrures: role de l'assistance electrophile par le cation ou un solvant hydroxyle
The reduction of Δ4-androsten-3, 17 dione 1 and of progesterone 2 by nBu4NBH4 is highly chemioselective: in THF only the a-enone moiety is reduced, the saturated C17 or C20 keto group being kept unchanged. When TMEDA is added, saturated alcohols are obtained, without any allylic alcohol when the reaction goes to completion. However this reduction is poorly stereoselective as 70:30 mixtures of A/B cis
[EN] PROCESS FOR PREPARING GUGGULSTERONES AND GUGGULSTEROL<br/>[FR] PROCEDE DE PREPARATION DE GUGGULSTERONES ET DE GUGGULSTEROLS
申请人:KANG HEONJOONG
公开号:WO2004094450A1
公开(公告)日:2004-11-04
The present invention relates to a method for selective preparing 4,17 (20)-E-pregnadiene-3,16-dione (E-guggulsterone) of the formula (III) and 4,17 (20)-Z-pregnadiene-3,16-dione (Z-guggulsterone) of the formula (IV) having an effect of lowering the elevated low density lipoprotein (LDL) and high levels of the cholesterol effectively, and elevating the low levels of the high density lipoprotein (HDL) from a easy-available steroid of the following formula (I). Also, the present invention provides a method for preparation of the compound of the above formula (II).
作者:Brendan J. Hussey、Robert A.W. Johnstone、Peter Boehm、Ian D. Entwistle
DOI:10.1016/0040-4020(82)80090-2
日期:1982.1
Zinc bis-tetrahydroborate forms a solid complex with dimethylformamide (DMF) of composition, Zn(BH4)2 1.5DMF. Unlike zinc bis-tetrahydroborate itself, the complex with DMF can be stored as a solid at room temperature. Ketones and aldehydes are reduced to the corresponding alcohols by the complex but the mechanism of reduction appears to be different from that using zinc bis-tetrahydroborate itself