Patent ID: 8252923

Claim:
A compound of formula 24 wherein: is optionally substituted C 5 -C 6 cycloalkyl or optionally substituted C 6 -C 10 aryl fused with C 5 -C 6 cycloalkyl; R 11 is —CO 2 R 13 ; R 12 is a moiety selected from the group consisting of M* is a transition metal; R 13 is acid protecting group or optionally substituted aliphatic group; R 14 is —CONR 15 R 15 , —CN, or —CO 2 R 16 ; MOM is methoxymethyl; R 15 is optionally substituted aliphatic group; R 16 is acid protecting group, optionally substituted aryl, or optionally substituted aliphatic group; R 17 is optionally substituted aryl, optionally substituted aliphatic group, R 18 is hydrogen, alkyl, alkylthio, or optionally substituted aryl; or R 17 and R 18 taken together with the carbon to which R 17 and R 18 are attached form and is a solid phase.