| http://www.w3.org/ns/prov#value | - R1 is (R2R3N(O)r)???, where r is 0 or 1 and R2 and R3 are each independently H, C1-6 alkyl, C3-8 cycloalkyl, C2-6 alkenyl or C2-6 alkynyl any of which may be optionally substituted; or R1 is where q is 0 or 1, Y is ???(CH2)m??? where m is an integer of 0 to 5, or Y is ???(CH2)n???Z???(CH2)p??? where n is an integer of 0 to 2, p is an integer of 0 to 2, and Z is a heteroatom (optionally substituted
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