WebCryptolaevilactones (CLs) A–L, found in the leaves and twigs of Cryptocarya laevigata, are unique natural meroterpenoids with a spiro[3.5]nonane skeleton. We report the total … WebBioassay-guided fractionation of an extract from a Papua New Guinea collection of the tropical tree Cryptocarya sp. provided a series of new 5,6-dihydro-α-pyrone-containing 1,3-polyols ( 1 – 8 ), named cryptocaryols A–H. Their structures were assigned from a combination of NMR, MS, and CD studies in conjunction with NMR database comparisons.

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WebJan 7, 2016 · During an ongoing exploration of potential anti-inflammatory agents from medicinal plants, eight new arylalkenyl α,β-unsaturated δ-lactones, cryptoconcatones A-H (1-8), and two unusual arylalkenyl α,β-unsaturated γ-lactones, cryptoconcatones I and J (9 and 10), were identified from the leaves and twigs of Cryptocarya concinna. WebA CH 3 OH–CH 2 Cl 2 (1:1) extract (N025439) of the leaves and twigs of Cryptocarya laevigata furnished eight new compounds, 1–8.Based on extensive 1D and 2D NMR spectroscopic data examination, the new δ-lactone derivatives 1–6 are monoterpene–polyketide hybrids containing a unique spiro[3.5]nonenyl moiety. Their … how to say i love you indirectly to crush

Spiro[3.5]nonenyl Meroterpenoid Lactones ... - Semantic …

WebAug 23, 2024 · Spiro[3.5]nonenyl Meroterpenoid Lactones, Cryptolaevilactones G-L, an Ionone Derivative, and Total Synthesis of Cryptolaevilactone M from Cryptocarya laevigata . WebAug 23, 2024 · Request PDF Spiro[3.5]nonenyl Meroterpenoid Lactones, Cryptolaevilactones G–L, an Ionone Derivative, and Total Synthesis of Cryptolaevilactone … WebDOI: 10.1016/0031-9422(96)81093-4 Corpus ID: 84292059; α-Pyrone from Cryptocarya latifolia—A structural isomer of umuravumbolide @article{Drewes1996PyroneFC, title={$\alpha$-Pyrone from Cryptocarya latifolia—A structural isomer of umuravumbolide}, author={Siegried E. Drewes and Marion M. Horn and C. Saroja Wijewardene}, … north iowa youth for christ