Citation: Je. Tarver et al., Total syntheses of conformationally constrained didemnin B analogues. Replacements of N,O-dimethyltyrosine with L-1,2,3,4-tetrahydroisoquinoline and L-1,2,3,4-tetrahydro-7-methoxyisoquinoline, J ORG CHEM, 66(23), 2001, pp. 7575-7587