The present invention relates to methods for synthesizing a 4-amino substituted compound of structure I, where the variables have the values described herein. The methods comprise reacting a substituted or unsubstituted ethyl 2-benzimidazolyl-2-acetate with a substituted or unsubstituted 2-aminobenzonitrile and a base or a Lewis acid, whereby the 4-amino substituted compound of structure I is provided.
