Re is, independently at each occurrence, H, C1 6 alkyl, C1 6 alkoxy, phenoxy, benzoxy, phenyl substituted with {HEAD ~ 0–1 Rc1}, or a 5–6 membered heterocycle consisting of carbon atoms and 1–4 heteroatoms selected from {TAIL ~ the group} consisting of N, O, and Sp, and substituted with 0–1 Rc1 
Re is , independently at each occurrence , H , C1 6 alkyl , C1 6 alkoxy , phenoxy , benzoxy , phenyl substituted with { HEAD ~ 0–1 Rc1 } , or a 5–6 membered heterocycle consisting of carbon atoms and 1–4 heteroatoms selected from { TAIL ~ the group } consisting of N , O , and Sp , and substituted with 0–1 Rc1
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH