(4-(1H-imidazol-1-yl)benzyl)proline

((2-hydroxynaphthalen-1-yl)methyl)proline

(2,4-dimethoxybenzyl)proline

(3-ethoxy-4-hydroxybenzyl)proline

(3,4-dimethoxybenzyl)proline

((2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methyl)proline

(benzo[b]thiophen-2-ylmethyl)proline

(4-(prop-2-yn-1-yloxy)benzyl)proline

((1-methyl-1H-indol-3-yl)methyl)proline

((5-chloro-1,3-dimethyl-1H-pyrazol-4-yl)methyl)proline

(2,6-difluoro-4-hydroxybenzyl)proline

(quinolin-2-ylmethyl)proline

(3-chloro-4-hydroxybenzyl)proline

(5-chloro-2-hydroxybenzyl)proline

(2-hydroxy-4-methoxybenzyl)proline

(3-hydroxy-4-methoxybenzyl)proline