There are provided inter alia metalloenzyme inhibitors, such as inhibitors of influenza A RNA dependent RNA polymerase PA subunit endonuclease, and methods of synthesis and use of the same.

The present disclosure provides compounds of the formula (I), (II), (III), wherein the variables are as defined herein for use in the treatment of fungal infections. In some embodiments, the fungal infection is an infection of Cryptococcus neojormans fungus. Also provided herein are compositions comprising a compound of formula I, II, or III and a second anti-fungal agent.

##STR00001##

Pentacyclic triterpene compounds are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the compounds, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The compounds can also be co-administered with leptin or a leptin analog.

Pentacyclic triterpene compounds are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the compounds, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The compounds can also be co-administered with leptin or a leptin analog.

The present invention provides organic compounds which are capable of releasing carbon monoxide under physiological conditions or pH trigger, and to the use of such compounds for conditioning a cell, tissue or organ, for example, to protect against ischaemic injury during a transplant event.

The invention relates to a derivative of 15-oxospiramilacton, particularly to a compound of Formula I or II, or an isomer, a solvate or a pharmaceutically acceptable salt thereof. The invention also relates to a pharmaceutical composition comprising the compound as pharmaceutically active ingredient, a method for preparing the same, and use thereof in manufacture of an anti-tumor agent. The derivative of 15-oxospiramilactone of the invention have an activity against multiple tumor cell lines, and the anti-tumor activity is positively correlated to an activity inhibiting the Wnt signaling pathway. ##STR00001##

The invention relates to a derivative of 15-oxospiramilacton, particularly to a compound of Formula I or II, or an isomer, a solvate or a pharmaceutically acceptable salt thereof. The invention also relates to a pharmaceutical composition comprising the compound as pharmaceutically active ingredient, a method for preparing the same, and use thereof in manufacture of an anti-tumor agent. The derivative of 15-oxospiramilactone of the invention have an activity against multiple tumor cell lines, and the anti-tumor activity is positively correlated to an activity inhibiting the Wnt signaling pathway. ##STR00001##

The invention 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 invention 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 invention provides compounds having the general formula I:

##STR00001##

and pharmaceutically acceptable salts thereof, wherein the variables R.sup.AA, n, ring A, X.sup.1, L, m, X.sup.2, R.sup.2, R.sup.3, R.sup.4, R.sup.5, X, and R.sup.6 have the meaning as described herein, and compositions containing such compounds and methods for using such compounds and compositions.