The pyrrolidine derivative of the above general formula is synthesized by, for example, a process wherein known 1 benzyl 4 carboxy 2 pyrrolidone is treated with thionyl chloride to form {HEAD ~ an acid chloride}, which is then reacted with {TAIL ~ Meldrums acid} and the resulting product is decarboxylated to obtain 4 acetyl derivative thereof 
The pyrrolidine derivative of the above general formula is synthesized by , for example , a process wherein known 1 benzyl 4 carboxy 2 pyrrolidone is treated with thionyl chloride to form { HEAD ~ an acid chloride } , which is then reacted with { TAIL ~ Meldrums acid } and the resulting product is decarboxylated to obtain 4 acetyl derivative thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH