prov:value
| - The compound of formula XVII, wherein R1???W??? is a standard transformable group, such as R1???O???, R1???(CH2)oO???, R1???O(CH2)pO???, R1???(CH2)rO(CH2)qO???, R1???(NR7)???, R1???(CH2)oNR7???, R1???O(CH2)pNR7???, R1???(CH2)rNR7(CH2)qO???, R1???NR7(CH2)qO???, R1???CONR7???, R1???S???, R1???CH2S???; or W is a bond and R1 is a 5 to 10 membered saturated, unsaturated or partially unsaturated heteroc
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