| abstract |
[Chemical 1] [In the formula (III), X 1 represents an unsubstituted or substituted C1-6 alkyl group or the like. m1 represents an integer of 0 to 5. A represents an oxygen atom or a sulfur atom. R 1 and R 2 each independently represent a hydrogen atom, an unsubstituted or substituted C 1-6 alkyl group, or the like. R 5 represents a hydrogen atom or an unsubstituted or substituted C 1-6 alkyl group. B represents an oxygen atom or a sulfur atom. Q 2 represents a C7-11 aralkyl group which is unsubstituted or has a substituent X 2 . R 3a , R 3b , R 4a and R 4b each independently represent a hydrogen atom, an unsubstituted or substituted C 1-6 alkyl group, or the like. ] |