% 'D-4-hydroxyproline'


config('D-4-hydroxyproline',[
        ring([
                (nit(1,hyd&&hyd),up)~,
                (car(1,carboxyl(2)&&hyd),left)~,
                methandiyl(3),
                car(4,hyd&&hydroxyl),
                (methandiyl(5),left)~])]).