Figure 1.

Chemical structure of cucurbitacin B (25-acetoxy-2β,16α,20β-trihydroxy-9β-methyl-19nor-10α-lanosta-5,23-diene-3,11,22-trione).

Duangmano et al. BMC Complementary and Alternative Medicine 2012 12:185   doi:10.1186/1472-6882-12-185
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