Substituent    TS1(C-C) cis     TS1 (C-C) trans           TS2 (C-N)cis    TS2(C-N) trans
CO2Et         -1718.300968      -1718.301739 (0.48)       -1718.298995    -1718.300756 (1.11)
alt pi-face   -1718.299128      -1718.297726 (0.88)       -1718.296019    -1718.295460 (0.35)

DOI:  https://doi.org/10.14469/hpc/13691