Fig. 11. Stick representation of the computed transition state geometry (RM1) for the formation of trans-R through the [L·M·S] complex. Carbon atoms are coloured grey, nitrogen atoms are coloured blue, oxygen atoms are coloured red and hydrogen atoms are coloured white. For clarity, most hydrogen atoms are not shown. Hydrogen bonds with D–H···A distances <2.0 Å are shown as blue dashed lines, hydrogen bonds with D–H···A distances between 2.0 and 2.5 Å are shown as red dashed lines. The transition state for the forming isoxazolidine ring is enclosed in the black dotted line.