Two New Cerioptins (A‐B) from the Mangrove Ceriops tagal

Abstract

Two novel compounds (1‐2), cerioptins A−B, along with seven known compounds were isolated from the mangrove, Ceriops tagal. These new compounds were characterized as a rare ethyl‐[(2‐allyl‐2‐chloromethyl)‐2H‐1‐benzopyran]‐3‐carboxylate (1) and a novel tetraterpenoid congener of heterodimeric diterpenoid, pimara‐11‐enol‐(16→2′)‐dolabra‐1,4(18),15‐triene (2) by extensive modern spectroscopic 2D NMR [COSY (correlation spectroscopy), NOESY (Nuclear Overhauser Effect Spectroscopy), HSQC (heteronuclear single‐quantum correlation), HMBC (heteronuclear multiple bond correlation)], IR (infrared) and mass data analysis. The naturally occurring new heterodimeric diterpene is derived from two new diterpenes as pimara‐11‐enol and dolabra‐1,4(18),15‐triene.

Bioassay Directed Fractionation of Petroleum Ether Extract of Aerial Parts of Ceriops tagal: Isolation of Lupeol as the Nematicidal Agent against Cyst Nematode Heterodera zeae

“…In Philippines its bark has been used as a remedy for obstetric conditions and hemorrhages, while in Thailand and China its bark and leaves are utilized for the treatment of infected wounds, and malaria. [4,5] Chemical constituents isolated from different parts of the plant include diterpenoids, triterpenoids, [5][6][7] fatty acids [8] and their derivatives, [9] steroids and their glucosides, [8][9][10][11] phenylpropanoids, [12,13] phenolics, polyphenols, [9,11,14,15] organic acids, [16] and benzopyran. [9] Diterpenoids and triterpenoids are the major chemical constituents of this plant.…”

“…[4,5] Chemical constituents isolated from different parts of the plant include diterpenoids, triterpenoids, [5][6][7] fatty acids [8] and their derivatives, [9] steroids and their glucosides, [8][9][10][11] phenylpropanoids, [12,13] phenolics, polyphenols, [9,11,14,15] organic acids, [16] and benzopyran. [9] Diterpenoids and triterpenoids are the major chemical constituents of this plant. [5][6][7] The isolated compounds and extracts from C. tagal possessed diverse biological activities, such as, cytotoxic, [5][6][7]15,[17][18][19][20][21] antitumor, [22][23][24][25] antidiabetic, [5,7,8,28] antifungal, [14,29] antibacterial, [6,7,29,30] antioxidant, [15,[31]…”

Ceriops tagal Biomass and Chlorophyll Analysis in Various Nursery Media

“…Ceriops tagal offers medical properties, according to Sura et al (2018), and can be used as a wound cleaner, for example. Furthermore, as a nutrient source, this species plays an important function in the mangrove ecosystem community.…”