{HEAD ~ The dried residue} is taken up in {TAIL ~ methylene chloride} and this contains compound II 
is taken up in
{ HEAD ~ The dried residue } is taken up in { TAIL ~ methylene chloride } and this contains compound II
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH