Patent ID: 6927057

Claim:
A compound of the formula: wherein at least one of R 1 -R 6 is modified from R 1 -R 6 in 6-dEB, in which R 1 -R 6 are methyl or from R 1 -R 6 in 2-nor-6-dEB (in which R 1 -R 5 are methyl and R 6 is H) such that at east one of R 1 -R 5 is H or Et or R 6 is ethyl; R 7 is methyl or ethyl; L 1 and L 2 are independently —H or —OH; L 3 is D-desosamine or —OH; and L 4 is L-mycarose, L-cladinose or —OH.