PROCESS FOR PRODUCING ECTEINASCIDIN COMPOUNDS

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The present invention is directed to a synthetic process for the formation of ecteinascidin compounds and related structures, such as the saframycins. In one particularly preferred embodiment, the present invention provides a syntheti c route for the formation of ecteinascidin 743 (1), an exceedingly potent and rare marin e- derived antitumor agent which is slated for clinical trials. The process of this invention is enantio- and stereocontrolled, convergent and short. Also disclosed are nove l process intermediates, useful not only in the total synthesis of ecteinascidin 743, but also other known ecteinascidin compounds, including derivatives and analogs thereof.