. "4/ when R1 and R2 together form a group ???(CH2)3???, Ar1 is the 3,4-dichlorophenyl group and T???A???Z is the 2-(3-methoxyphenyl)acetyl group, B is the group B1 in which J1 is the group in which x is one, Ar2 is phenyl and X1 is other than hydrogen;" . . . .