Wherein, R.sup.1, R.sup.2, R.sup.3, R.sup.4a, R.sup.4b and R.sup.5 are described herein, or a stereoisomer, enantiomer or tautomer thereof or mixtures thereof, or a pharmaceutically acceptable salt or solvate thereof, are described herein, as well as other compounds. These compounds are useful in treating inflammation and/or pain. Compositions comprising a compound of the invention are also disclosed, as are methods of using the compounds to treat inflammation and/or pain.

The invention provides novel manganese catalysts such as [Mn(.sup.tBuPc)], which are general for the amination of all types of C(sp.sup.3)-H bonds (aliphatic, allylic, propargylic, benzylic, ethereal), including strong 1.sup.o aliphatic C—H bonds, while achieving excellent chemoselectivity, stereospecificity, and high functional group tolerance. We demonstrate the late-stage diversification of bioactive complex molecules that encompass the range of C(sp.sup.3)-H bond types, such as selective 1.sup.o C—H aminations of betulinic acid and pleuromutilin derivatives. The catalysts' unprecedented balance of reactivity and selectivity is in part attributed to its mechanism of C—H amination that lies between stepwise and concerted.

3,4-thiazolo steroids are provided herein. Also provided herein are methods of making and using the same for the inhibition of cell proliferation or the killing of cells.

Provided herein are steroid sulfatase inhibitor compounds and androgen receptor inhibitor compounds that can be useful in, for example, the treatment of cancers such as prostate cancer and breast cancer. Pharmaceutical compositions and kits including the compounds are described, as well as methods for the treatment of cancer such as prostate cancer and breast cancer.

wherein, R.sup.1, R.sup.2, R.sup.3, R.sup.4a, R.sup.4b and R.sup.5 are described herein, or a stereoisomer, enantiomer or tautomer thereof or mixtures thereof, or a pharmaceutically acceptable salt or solvate thereof, are described herein, as well as other compounds. These compounds are useful in treating inflammation and/or pain. Compositions comprising a compound of the invention are also disclosed, as are methods of using the compounds to treat inflammation and/or pain.

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3,4-thiazolo steroids are provided herein. Also provided herein are methods of making and using the same for the inhibition of cell proliferation or the killing of cells.

3,4-thiazolo steroids are provided herein. Also provided herein are methods of making and using the same for the inhibition of cell proliferation or the killing of cells.