278799-09-0Relevant articles and documents
Expeditious Synthesis of 2,3-Dihydro-1H-pyrroloindoles, Pyrroloindole Quinones, and Related Heterocycles via Nenitzescu-Type Condensation of Quinone Monoketals with Exocyclic Enamino Esters
Coates, Robert M.,MacMann, Patrick A.
, p. 4822 - 4824 (1982)
Condensation of exocyclic enamino esters with 3-methoxyquinone 4-monoketals gives rise to bicyclic Michael adducts (see Table I) which undergo acid-catalyzed aromatization to 5-methoxypyrroloindole-9-carboxylates suitable for elaboration to mitosenes.