COMPOUNDS USEFUL IN PRODUCTION OF SALACINOL AND METHOD FOR PRODUCING SAME, METHOD FOR PRODUCING SALACINOL, METHODS FOR PROTECTING AND DEPROTECTING DIOL GROUP, AND DIOL GROUP PROTECTIVE AGENT

摘要

The purpose of the present invention is to provide novel compounds useful in the production of salacinol and a method for producing these compounds, a method for producing salacinol, methods for protecting and deprotecting a diol group, and a diol group protective agent. Compounds represented by general formula (1) (in the formula, R1a and R1b are a hydrogen atom or carboxy protecting group; R2 is a hydroxy group or the like; and R3 is a hydroxy group or the like) are useful in the production of salacinol.