Example 1
A mixture of the SM (1.0 g, 6.3 mmol) in ACN (20 mL) was treated with SOCl2 (0.8 mL). The resulting mixture was refluxed for 2 h. The solvent was removed in vacuo to provide the crude product as an oil which was used in the next step without further purification.
[Patent Reference: WO2010016005, page 89, (11.3 MB)]