Preferred IUPAC name
3D model (JSmol)
  • InChI=1S/C25H36O5/c1-16(10-12-20-17(2)8-6-14-25(20,3)4)7-5-9-18-11-13-21(29-23(18)27)19-15-22(26)30-24(19)28/h7,11,15,21,23-24,27-28H,5-6,8-10,12-14H2,1-4H3/b16-7+/t21-,23-,24-/m1/s1 ☒N
  • InChI=1/C25H36O5/c1-16(10-12-20-17(2)8-6-14-25(20,3)4)7-5-9-18-11-13-21(29-23(18)27)19-15-22(26)30-24(19)28/h7,11,15,21,23-24,27-28H,5-6,8-10,12-14H2,1-4H3/b16-7+/t21-,23-,24-/m1/s1
  • CC1=C(C(CCC1)(C)C)CC/C(=C/CCC2=CC[C@@H](O[C@H]2O)C3=CC(=O)O[C@H]3O)/C
Molar mass 416.55034
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Manoalide is a calcium channel blocker. It has antibiotic, analgesic and anti-inflammatory effects and is found in some sponges, including the West Pacific species Luffariella variabilis.[1] Its functions are made possible by the permanent blockage of phospholipase A2 and C[2] with lysine residues. This could be made possible through the functional groups incorporated in gamma-hydroxybutenolide, alpha-hydroxydihydropyran and the trimethylcyclohexenyl. The gamma-hydroxybutenolide ring is present in the reaction between manoalide and phospholipase A2, the hemiacetal in alpha-hydroxydihydropyran is needed for permanent binding and hydrophobic trimethylcyclohexenyl ring makes it possible for non-bonded interactions to interact between manoalide and phospholipase A2 to strengthen the reaction. [3] Due to its potential of permanent inhibition, it was made possible for it to take part in oral cancer[4] and Hepatitis C[5] research.


  1. ^ Brusca, Richard C. and Brusca, Gary J. Invertebrates. 2nd ed. Sinauer Associates, 2002. p. 202.
  2. ^ Oxford dictionary of biochemistry and molecular biology. Cammack, Richard, Ph. D. (Rev. ed.). Oxford: Oxford University Press. 2006. ISBN 978-1-61344-113-8. OCLC 743217704.((cite book)): CS1 maint: others (link)
  3. ^ "Molecular Pharmacology: 98 (6)". Molecular Pharmacology. 98 (6). 2020-12-01. ISSN 0026-895X.
  4. ^ Wang, Hui-Ru; Tang, Jen-Yang; Wang, Yen-Yun; Farooqi, Ammad Ahmad; Yen, Ching-Yu; F. Yuan, Shyng-Shiou; Huang, Hurng-Wern; Chang, Hsueh-Wei (2019). "Manoalide Preferentially Provides Antiproliferation of Oral Cancer Cells by Oxidative Stress-Mediated Apoptosis and DNA Damage". Cancers. 11 (9): 1303. doi:10.3390/cancers11091303. PMC 6770486. PMID 31487907.
  5. ^ Salam, Kazi Abdus; Furuta, Atsushi; Noda, Naohiro; Tsuneda, Satoshi; Sekiguchi, Yuji; Yamashita, Atsuya; Moriishi, Kohji; Nakakoshi, Masamichi; Tsubuki, Masayoshi; Tani, Hidenori; Tanaka, Junichi (2012). "Inhibition of Hepatitis C Virus NS3 Helicase by Manoalide". Journal of Natural Products. 75 (4): 650–4. doi:10.1021/np200883s. PMID 22394195.