prov:value
| - R1 is a halogen, OH, C1-C12 alkyloxy, optionally substituted phenoxy, or optionally substituted napthyloxy, where the optional substituents are C1-C6 alkyl, C1-C6 alkoxy, OH, ???(CH2CH2O)n???, or ???(CH2CH(CH3)O)n???; R2 is a C1-C12 alkyl, (CH2CH2O)n, (CH2CH(CH3)O)n, or CH2CH2CH2(Si(CH3)2O)mSi(CH3)2CH2CH2CH2; X is nothing if R2 is (CH2CH2O)n or (CH2CH(CH3)O)n, otherwise X is O, NR4, or S; R3 is no
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