Intermediate compound for synthesis of viridiofungin a derivative

摘要

A method whereby a compound having HCV replication inhibitory activity and desired optical activity can be synthesized selectively and at high yield in a small number of steps by using a compound having a specific chiral auxiliary as a starting compound is provided. A compound represented by the formula (1-8): wherein Y represents a group represented by the following formula: Q represents a protected carbonyl group; D represents —(CH2)m—R′, etc.; and n represents an integer of 0 to 10.