Malaysian Journal of Analytical Sciences Vol 21 No 4 (2017): 778 - 783

DOI: https://doi.org/10.17576/mjas-2017-2104-03

 

 

 

NEW COMPOUNDS FROM Hydnophytum formicarum YOUNG TUBERS

 

(Sebatian Baru daripada Bonjolan Muda Hydnophytum formicarum)

 

Nur Shafiqa Abdullah, Wan Yaacob Wan Ahmad*, Noor Aziiraa Sabri

 

School of Chemical Science and Food Technology, Faculty of Science and Technology

Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia

 

*Corresponding author:  wanyaa@ukm.edu.my

 

 

Received: 16 January 2017; Accepted: 14 June 2017

 

 

Abstract

The fine powders from young tubers of Hydnophytum formicarum were soaked and extracted by Soxhlet in methanol. Both methanol solutions were evaporated with rotary evaporator to yield cold and hot methanol extracts. Chromatographic separation on the extracts by vacuum liquid and radial chromatography gave two new compounds namely hydnophaldehyde [4,4′,10′,13′,14′-pentamethylgona-7′,9′(11′)-dien-17′-yl(6)-2,2-dimethylheptanal] (1) and 2-(2′-methoxyphenyl)ethyl palmitate (2). The structures of the above compounds were established by interpreting their spectral data of mass, 1-D Nuclear Magnetic Resonance (NMR), 2-D NMR, and Infrared (IR).

 

Keywords:  Rubiaceae, Hydnophytum formicarum, hydnophaldehyde, 2-(2′-methoxyphenyl)ethyl palmitate

 

Abstrak

Serbuk halus bonjolan muda Hydnophytum fomicarum direndam dengan metanol dan diekstrak mengunakan kaedah Soxhlet. Kedua-dua larutan metanol disejat dengan penyejat berputar bagi menghasilkan ekstrak metanol sejuk dan panas. Pemisahan kromatografi terhadap ekstrak tersebut dengan kromatografi cecair vakum dan radial memberikan dua sebatian baru bernama hidnofaldehid [4,4′,10′,13′,14′-pentametilgona-7′,9′(11′)-dien-17′-il(6)-2,2-dimetilheptanal] (1) dan 2-(2′-metoksifenil)etil palmitat (2). Struktur sebatian di atas disahkan dengan mentafsirkan data spektrum bagi jisimnya, Resonans Magnetik Nuklear (RMN) 1-D, RMN 2-D dan Inframerah (IM).

 

Kata kunci:  Rubiaceae, Hydnophytum formicarum, hidnofaldehid, 2-(2′-metoksifenil)etil palmitat

 

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