Downstream Products: (3r,5'r,5ar,7s,8s,8as,9ar)-8a-hydroxy-3-(hydroxymethyl)-2,4',4',5'-tetramethyl-1,3',4-trioxo-3,9a-disulfanyldodecahydro-3'h-spiro[cyclopenta[4,5]pyrrolo[1,2-a]pyrazine-7,2'-furan]-8-yl acetate