prov:value
| - The remainder of the substituents Rp', Rq', Rr', Rs' or Rt' that are not (Ra')n (Rb')n' --X (remaining B substituents) are independently H, CH3, NO2, CF3, F, Cl, Br, I, --OR5, --(C???O)OR5, or --OCH2 (C???O)OR5, where R5 is an alkyl group with about 1-6 carbons, a benzyl (C6 H5 CH2 --), an alpha-acyloxyalkyl or a pharmaceutically acceptable esterifying or a pharmaceutically acceptable salt.
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