(+)-(1S,5R,6R)-6-[(S)-1-Hy-droxy-2-(meth-oxy-meth-yloxy)eth-yl]-1-methyl-3-trichloro-methyl-2-aza-4,7-dioxa-bicyclo-[3.3.0]oct-2-en-8-one.

(+)-(1S,5R,6R)-6-[(S)-1-Hy-droxy-2-(meth-oxy-meth-yloxy)eth-yl]-1-methyl-3-trichloro-methyl-2-aza-4,7-dioxa-bicyclo-[3.3.0]oct-2-en-8-one.