Abstract: Several different pyrrolysine analogs are disclosed in this application. Those analogs have distinct chemical and biophysical properties. Some analogs are useful in chemical ligation applications. Methods of making and using are also disclosed.

Abstract: Several different pyrrolysine analogs are disclosed in this application. Those analogs have distinct chemical and biophysical properties. Some analogs are useful in chemical ligation applications. Methods of making and using are also disclosed.

Abstract: A chiral catalyst comprising a 3, 4-disubstituted pyridine, or a salt, N functionalised derivative, dimer or oligomer thereof, wherein the 3-substituent is substantially hindered from rotation about the bond (sp2-sp2 biaryl axis) linking it to pyridine and the 4-substituent is an aliphatic or aromatic amine linked by a single bond to the pyridine, the pyridine nitrogen being functionalised or unfunctionalised, preferably comprising a compound of formula I wherein Z is a group substantially hindered from rotation about its bond; and each of R1 and R2 are independently selected from C1-30 alkyl, C3-30 cyclo alkyl and/or C3-30 aryl, or NR1 R2 form a cyclic amine; wherein R1 and/or R2 may be optionally substituted and/or include one or more heteroatoms; a composition or support comprising the catalyst; process for the preparation and resolution thereof; process for stereoselective reaction of an optically inactive substrate using the catalyst; and the optically active reaction product thereof.

Abstract: A new class of tetracylic benzimidazole compounds and derivatives thereof. Additionally provided is a synthetic route for the generation of these and related compounds via Intramolecular Aromatic Nucleophilic Substitution (SNAr) of the Benzimidazole-Activated Nitro Groups. Additionally, a facile route for the generation of novel phenol species as thermal decomposition of compounds the SNAr product, which occurs at high temperature resulting in cleavage of the ether linkage and formation of a vinyl group and phenol is provided. Also provided are methods of using the compounds described herein in the treatment HIV.