“…Compounds 2a – 2c , 2f , 2i – 2j , 2n – 2o , and 2q – 2r were prepared according to the previously reported procedures. ,,, Citations to the references containing characterization data for these compounds 2a , 2b , 2c , 2f , 2i , 2j , 2n , 2o , 2q , and 2r are consistent with the previous reports.…”