prov:value
| - pp. 165-195(1991); n is an integer which is 1, 2, 3, 4, 5, 6 or 7, preferably is 1, 2 or 3, and most preferably is 2 or 3; E??? represents hydrogen or lower alkyl ( e.g., straight chain or branched alkyl including C1-C5, such as methyl, ethyl or isopropyl) or halo substituted lower alkyl (e.g., straight chain or branched alkyl including C1-C5, such as trifluormethyl or trichloromethyl); E??? repr
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