Enantioselective Addition of Thiazolyllithiumto Aldimines with the Aid of Chiral Ligand. Asymmetric Synthesis of (S)-Doe, a Component of Marine Natural Product, Dolastatin 10
摘要:
The external chiral ligand mediated asymmetric reaction of thiazolyllithium with aldimines was examined. The amino ether (5) gave rise to relatively high selectivity in the reaction of phenylimine, and sparteine (6) provided high selectivity in the reaction of imines bearing an alpha-methylene group. The reaction was applied to the synthesis of (S)-Doe, a component of antileukemic marine natural product, dolastatin 10.
Enantioselective Addition of Thiazolyllithiumto Aldimines with the Aid of Chiral Ligand. Asymmetric Synthesis of (S)-Doe, a Component of Marine Natural Product, Dolastatin 10
摘要:
The external chiral ligand mediated asymmetric reaction of thiazolyllithium with aldimines was examined. The amino ether (5) gave rise to relatively high selectivity in the reaction of phenylimine, and sparteine (6) provided high selectivity in the reaction of imines bearing an alpha-methylene group. The reaction was applied to the synthesis of (S)-Doe, a component of antileukemic marine natural product, dolastatin 10.
Enantioselective Addition of Thiazolyllithiumto Aldimines with the Aid of Chiral Ligand. Asymmetric Synthesis of (S)-Doe, a Component of Marine Natural Product, Dolastatin 10
The external chiral ligand mediated asymmetric reaction of thiazolyllithium with aldimines was examined. The amino ether (5) gave rise to relatively high selectivity in the reaction of phenylimine, and sparteine (6) provided high selectivity in the reaction of imines bearing an alpha-methylene group. The reaction was applied to the synthesis of (S)-Doe, a component of antileukemic marine natural product, dolastatin 10.