Synthetic studies of carzinophilin. Part 3: Synthetic approach toward carzinophilin and successful synthesis of 13-O-desacetyl-12,13-di-O-benzyl-4-O-methylcarzinophilin
The synthetic procedures of the title compound (2), a protected form of carzinophilin (1), were developed. While efforts toward the total synthesis of 1 failed, comparison of the 1H NMR spectra of 2 and some other related compounds with that of