Derivatives 1-azaspiro (3.5) nonan-2-one-5,7-carbolactone and 5.7-protected-1-azaspiro (3.5) nonan-2-one and their use as intermediates in the synthesis of TTX.

摘要

The invention provides compounds of formula (I) and methods for their preparation The compounds of the invention are useful intermediates in the synthesis of TTX and analogues thereof.