... Tetrahedron: Asymmetry. Volume 10, Issue 2, 29 January 1999, Pages 367–374. ... Mesylation of (R,R)-8 was readily achieved with mesyl chloride in pyridine at 0°C. Both the coupling of (R,R)-6 with (R,R)-10 and the subsequent hydrolysis of the resulting sulphonamide (R,R,R,R ...