prov:value
| - -, wherein n is 1 to 10, --(CH2)p,CHY--, wherein Y is COOH or NH2 and p is 1 to 10, or --(CH2)m,--C6 H4 --(CH2)l --, wherein m is 1 to 10 and l is 1 to 10, and R1 --CO--is represented by the formula: ##STR22## wherein R4 and R5 may be the same or different and each is a hydrogen atom, a lower alkyl, lower alkoxyl, nitro or amino group; ##STR23## wherein R6 is a hydrogen or halogen atom or a lower
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