Two new withanolides, namely (20S,22R)‐15α‐acetoxy‐5α‐chloro‐6β,14β‐dihydroxy‐1‐oxowitha‐2,24‐dienolide (1) and (22R)‐5β,6β : 14α,17 : 14β,26‐triepoxy‐2α‐ethoxy‐13,20,22‐trihydroxy‐1,15‐dioxo‐16α,24‐cyclo‐13,14‐secoergosta‐18,27‐dioic acid 18→20,27→22‐dilactone (2), along with six known compounds, physagulin B (3), withangulatin A (4), physalin I (5), withaminimin (6), physagulin J (7), and ergosta‐5,25‐diene‐3β,24ξ‐diol (8), were isolated from the whole plant of Physalis alkekengi var. francheti. Their structures were elucidated on the basis of spectroscopic analyses.
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Li et al. (2008) studied this question.
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