127999-44-4 6-Hydroxy-7-O-methylscytophycin B Scytophycin B, 6-hydroxy-7-O-methyl- Swinholide A, 27,31-deepoxy-31,32-didehydro-16,34-epoxy-32-(formylmethylamino)-6-hydroxy-28,30-dimethyl-7,17,19-tri-O-methyl-27-oxo- Tolytoxin