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(2007/10/03)7β-acetoxy-12-methoxypodocarpa-8,11,13-trien-19-oate
methyl 12-methoxypodocarpa-6,8,11,13-tetraen-19-oate
methyl 7α-acetoxy-12-methoxypodocarpa-8,11,13-trien-19-oate
methyl 6α-(3'-chlorobenzoyloxy)-7α-hydroxy-12-methoxypodocarpa-8,11,13-trien-19-oate
methyl 7β-(3'-chlorobenzoyloxy)-6α-hydroxy-12-methoxypodocarpa-8,11,13-trien-19-oate