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Mar. Drugs 2004, 2(4), 185-191; doi:10.3390/md204185
Article

Philinopgenin A, B, and C, Three New Triterpenoid Aglycones from the Sea Cucumber Pentacta quadrangulasis

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Received: 17 May 2004 / Accepted: 16 October 2004 / Published: 25 November 2004
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Abstract

Three new triterpenoid aglycones named Philinopgenin A (1), B (2), and C (3) were isolated from the acid hydrolysate of the crude glycoside mixture prepared from the whole sea cucumber Pentacta quadrangulasis Lesson. The corresponding structures were determined as 16β-acetoxyholosta-8(9), 24(25)-diene-3β-ol (1), 20, 25-epoxy-lanosta-9(11)-ene-3β-ol 18(16)–lactone (2) and 16β-acetoxyholosta-9(11), 24(25)-diene-3β-ol (3), respectively, on the basis of spectral evidence.
Keywords: Pentacta quadrangulasis Lesson; Philinopgenin A; Philinopgenin B; Philinopgenin C; triterpenoid aglycone Pentacta quadrangulasis Lesson; Philinopgenin A; Philinopgenin B; Philinopgenin C; triterpenoid aglycone
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Zhang, S.-L.; Li, L.; Yi, Y.-H.; Zou, Z.-R.; Sun, P. Philinopgenin A, B, and C, Three New Triterpenoid Aglycones from the Sea Cucumber Pentacta quadrangulasis. Mar. Drugs 2004, 2, 185-191.

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