| http://www.w3.org/ns/prov#value | - In another embodiment, R3 is ???C(O)CH2CH3.In yet another embodiment is a compound of Formula (I) wherein R6 is hydrogen.In a further embodiment is a compound of Formula (I) wherein R6 is C1-C6alkyl.In yet a further embodiment is a compound of Formula (I) wherein R6 is CH3.In one embodiment is a compound of Formula (I) wherein R6 is CH2CH3.
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