2- or 3- substituted Carboxylate > RH + CO2
[#6,#8:6]=,:[#6:5]-[#6;!$(C([#1,#8])([H])(C([O-])=O)c1ccccc1)!$(C(C(=O)[O-])[C;R0]=[C;R0]):1]-[#6](-[#8-])=O>>[#6,#8:6]=,:[#6:5]-[#6:1]
[#6,#8:6]=,:[#6:5]-[#6;!$(C([#1,#8])([H])(C([O-])=O)c1ccccc1)!$(C(C(=O)[O-])[C;R0]=[C;R0]):1]-[#6](-[#8-])=O
[$([H]C[C;R0](=O)[CH2]C([#8-])=O),$([O-]C(=O)CC(=O)C=CC([O-])=O),$(OC1[#6]=,:[#6]-[#6]=,:[#6]C1O),$(CC(O)(O)C(O)=O),$([#1A]C([#6])(O)C([#8-])=O)]
[#6,#8:6]=,:[#6:5]-[#6:1]
None
