prov:value
| - As described generally above for compounds of formula VI, R1 is TR3, wherein wherein T is a bond or is a C1-C6 alkylidene chain wherein up to two methylene units of T are optionally replaced by ???C(O)???, ???C(O)C(O)???, ???CONR???, ???CONRNR???, ???CO2???, ???OC(O)???, ???NRCO2???, ???O???, ???NRCONR???, ???OC(O)NR???, ???NRNR, ???NRCO???, ???S???, ???SO???, ???SO2???, ???NR???, ???SO2NR???, or
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