Described herein are protein steroid conjugates that are useful, for example, for the target-specific delivery of glucocorticoids (GCs) to cells.

Provided herein are glucocorticoid receptor agonist immunoconjugates, glucocorticoid receptor agonists, and methods of using the same, e.g., to treat autoimmune or inflammatory diseases.

The invention provides a novel, general, and facile strategy for the creation of small molecules with high structural and stereochemical complexity. Aspects of the methods include ring system distortion reactions that are systematically applied to rapidly convert readily available natural products to structurally complex compounds with diverse molecular architectures. Through evaluation of chemical properties including fraction of sp.sup.3 carbons, ClogP, and the number of stereogenic centers, these compounds are shown to be significantly more complex and diverse than those in standard screening collections. This approach is demonstrated with natural products (gibberellic acid, adrenosterone, and quinine) from three different structural classes, and methods are described for the application of this strategy to any suitable natural product.

The present invention provides a compound of Formula I:

##STR00001##

wherein R is H or

##STR00002## R.sup.1 is H, halogen, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, C2-C3 alkenyl, OCF.sub.3,

##STR00003## R.sup.2 is H, halogen, C1-C3 alkyl, C1-C3 alkoxy, or C2-C4 alkenyl; R.sup.3 is NH.sub.2, or CH.sub.2NH.sub.2; and X is O, OCH.sub.2, OCH.sub.2CH.sub.2, OCH(CH.sub.3), CH.sub.2O, SCH.sub.2, CH.sub.2S, CH.sub.2, NHCH.sub.2, CH.sub.2NH, N(CH.sub.3)CH.sub.2, CH.sub.2CH.sub.2, CC, or a bond, wherein X is connected to phenyl ring A at the ortho or the meta position, or a pharmaceutically acceptable salt thereof, wherein the compound of Formula I, or pharmaceutically acceptable salt thereof is useful for treating autoimmune and inflammatory diseases, such as atopic dermatitis and rheumatoid arthritis.

Provided herein are compounds and pharmaceutical compositions useful in modulating kinase activity, and related diseases. Also provided herein are methods of treating an eye disease or disorder in a subject. Also provided herein are methods of reducing intraocular pressure in a subject. Also provided herein are methods of modulating kinase activity in a cell. Also provided herein are methods of making the compounds provided herein, and compounds useful for the preparation of the compounds provided herein.

The present invention pertains to the field of pharmaceutical chemistry, and relates to compounds having cyclopentanoperhydrophenanthrene skeletons and preparation methods therefore. The compounds have some physiological activity, and are useful as synthons/intermediates for further synthesizing some compounds having specific structures. These compounds and salts thereof are useful as lead compounds for synthesizing pharmaceuticals, pesticides and new materials. From this, further screen and preparation by chemical, biological and medical means offer new compounds that are more valuable and have important applications, achieving the object of inventing and creating new drugs.

The present invention discloses a process for the preparation of pregnadiene derivatives having formula I, their stereoisomer and intermediate thereof. Formula I wherein each substituent is independently, R.sub.1 and R.sub.2 is hydrogen or C.sub.1-C.sub.8 straight, branched alkyl chain, saturated or unsaturated cycloalkyl; R.sub.3 is hydrogen or wherein R.sub.5 represents C.sub.1-C.sub.8 straight, branched alkyl chain or cycloalkyl; R.sub.4 is hydrogen or halogen; R.sub.6 is hydrogen or halogen; ##STR00001##

The present disclosure relates to the field of pharmaceutical chemistry, and particularly to a compound represented by Formula (I), a preparation method and medical use thereof. In the compound represented by Formula (I), a lactulosyl group is connected to a heteroatom of genin (G) via a glycosidic bond, wherein the genin (G) is a group formed by removing one hydrogen atom from a heteroatom of an active pharmaceutical molecule, and indicates that the lactulosyl group is connected to the heteroatom of the genin (G) via an -glycosidic bond or a -glycosidic bond. Pharmacokinetic experiments prove that the lactuloside compound according to the present disclosure can pass through the gastrointestinal tract of a mammal without being absorbed significantly by the gastrointestinal tract and hydrolyzed significantly by endogenous enzymes of a mammal host. Therefore, the lactuloside compound can arrive at the colon site of the mammal, and release an active drug in the colon under the action of colon flora. The lactuloside compound has a function of colon-localized drug release, and can be used for preventing or treating an intestinal disease.

##STR00001##

Described herein are protein steroid conjugates that are useful, for example, for the target-specific delivery of glucocorticoids (GCs) to cells.

The present disclosure provides human interleukin 4 receptor alpha antibody glucocorticoid receptor agonist conjugates and methods of using the conjugates for the treatment of inflammatory diseases, such as type 2 inflammatory diseases.