{TAIL ~ The mixture} is treated with {HEAD ~ a mild inorganic base}, such as for example, NaHCO3, and the solvent is removed in vacuo 
{ TAIL ~ The mixture } is treated with { HEAD ~ a mild inorganic base } , such as for example , NaHCO3 , and the solvent is removed in vacuo
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH