Figure 4.
ORTEP perspectives of anthranilic acid derivatives: (a) N-(2-methylphenyl)anthranilic acid 3 and (b) N-(3-tert-butylphenyl)anthranilic acid 17. Selected interatomic distances [Å] and angles [°]: (a) O(1)···O(2) 2.224, N(1)···O(1) 2.636, O(2)-H(2′)···O(1) 172.79, N(1)-H(1)···O(1) 138.32; (b) O(1)···O(3) 2.643, O(2)···O(4) 2.707, N(1)···O(2) 2.733, N(2)···O(3) 2.692, O(4)-H(4O)···O(2) 164.42, N(1)-H(1)···O(2) 132.77.