scholarly journals Kokosanolide D: A New Tetranortriterpenoid from Fruit Peels of Lansium domesticum Corr. cv Kokossan

Molbank ◽  
10.3390/m1232 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1232
Author(s):  
Fawwaz M. Fauzi ◽  
Sylvia R. Meilanie ◽  
Zulfikar ◽  
Kindi Farabi ◽  
Tati Herlina ◽  
...  
Keyword(s):  
High Resolution ◽  
Mass Spectroscopy ◽  
Spectroscopic Data ◽  
2D Nmr ◽  
Spectroscopy Analysis ◽  
Related Compounds ◽  
Lansium Domesticum ◽  
High Resolution Mass Spectroscopy ◽  
Mass Spectroscopy Analysis ◽  
Resolution Mass

A novel tetranortriterpenoid named kokosanolide D has been isolated from fruit peels of Lansium domesticum. The structure of kokosanolide D was elucidated primarily on the basis of spectroscopic data including infrared, 1D and 2D-NMR, as well as high resolution mass spectroscopy analysis and comparison with related compounds previously reported.

scholarly journals 5,5′-Oxybis(1,3,7-trihydroxy-9H-xanthen-9-one): A New Xanthone from the Stem Bark of Garcinia porrecta (Clusiaceae)

Molbank ◽  
10.3390/m1153 ◽  
2020 ◽  
Vol 2020 (3) ◽  
pp. M1153
Author(s):  
Ayu N. Safitri ◽  
Nurlelasari ◽  
Tri Mayanti ◽  
Darwati ◽  
Unang Supratman
Keyword(s):  
High Resolution ◽  
Mass Spectroscopy ◽  
Spectroscopic Data ◽  
2D Nmr ◽  
Stem Bark ◽  
Spectroscopy Analysis ◽  
High Resolution Mass ◽  
High Resolution Mass Spectroscopy ◽  
Mass Spectroscopy Analysis ◽  
Resolution Mass

A new polyoxygenated dimer-type xanthone, namely 5,5′-oxybis(1,3,7-trihydroxy-9H-xanthen-9-one (1), has been isolated from the stem bark of Garcinia porrecta. The structure of 1 was determined based on spectroscopic data, including 1D and 2D-NMR as well as high resolution mass spectroscopy analysis.

scholarly journals 3-Hydroxy-8,14-secogammacera-7,14-dien-21-one: A New Onoceranoid Triterpenes from Lansium domesticum Corr. cv kokossan

Molbank ◽  
10.3390/m1157 ◽  
2020 ◽  
Vol 2020 (4) ◽  
pp. M1157
Author(s):  
Zulfikar ◽  
Nurul Putri ◽  
Sofa Fajriah ◽  
Muhammad Yusuf ◽  
Rani Maharani ◽  
...  
Keyword(s):  
Spectroscopic Data ◽  
2D Nmr ◽  
Breast Cancer Cell Lines ◽  
Spectroscopy Analysis ◽  
Weak Activity ◽  
Lansium Domesticum ◽  
High Resolution Mass Spectroscopy ◽  
Mass Spectroscopy Analysis ◽  
Resolution Mass ◽  
Mcf 7

A new onoceranoid triterpenes, namely 3-hydroxy-8,14-secogammacera-7,14-dien-21-one (1), has been isolated from the fruit peels of Lansium domesticum Corr. cv kokossan. The structure of 1 was determined on the basis of spectroscopic data including infrared, 1D and 2D-NMR, as well as high resolution mass spectroscopy analysis. Compound 1 showed a weak activity against MCF-7 breast cancer cell lines.

scholarly journals (22E,24S)-24-Propylcholest-5en-3α-acetate: A New Steroid from the Stembark Aglaia angustifolia (Miq.) (Meliaceae)

Molbank ◽  
10.3390/m1112 ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. M1112
Author(s):  
Ricson P. Hutagaol ◽  
Desi Harneti ◽  
Ace T. Hidayat ◽  
Nurlelasari Nurlelasari ◽  
Rani Maharani ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Spectroscopic Data ◽  
Cancer Cell Line ◽  
2D Nmr ◽  
Spectroscopy Analysis ◽  
Weak Activity ◽  
High Resolution Mass Spectroscopy ◽  
Mass Spectroscopy Analysis ◽  
Resolution Mass ◽  
Mcf 7

A new propylcholesterol-type steroid, namely (22E,24S)-24-propylcholest-5en-3α-acetate (1), has been isolated from the stembark of Aglaia angustifolia (Miq.). The structure of 1 was determined on the basis of spectroscopic data including 1D- and 2D-NMR as well as high resolution mass spectroscopy analysis. Compound 1 showed weak activity against the MCF-7 breast cancer cell line.

Electron Impact Mass Spectroscopy for Identification of Phencyclidine

1986 ◽  
Vol 69 (5) ◽  
pp. 814-820
Author(s):  
Charles C Clark
Keyword(s):  
Mass Spectrum ◽  
High Resolution ◽  
Electron Impact ◽  
Mass Spectroscopy ◽  
Phenyl Ring ◽  
Labeled Compounds ◽  
Electron Impact Mass ◽  
High Resolution Mass Spectroscopy ◽  
Impact Mass ◽  
Resolution Mass

Abstract The electron impact mass spectrum of phencyclidine (PCP) was studied using both deuterium-labeled analogs and high-resolution mass spectroscopy. The deuterium-labeled compounds used were d5.PCP having 5 deuterium atoms on the phenyl ring, d10.PCP having 10 deuterium atoms on the cyclohexyl ring, and d15.PCP having deuterium atoms on both the phenyl and cyclohexyl rings. The identities of some major fragments and some possible pathways for their formation are shown. Electron impact mass spectroscopy is shown to be a definitive test for the identification of PCP.

scholarly journals 2,9-Dimethyl-11-(3-pentadecylphenoxy)dibenzo[c,f][1,2,5]dithiaphosphepine 11-oxide

Molbank ◽  
10.3390/m1109 ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. M1109
Author(s):  
Micheletti ◽  
Mazzacurati ◽  
Telese ◽  
Boga
Keyword(s):  
Gas Chromatography ◽  
High Resolution ◽  
Mass Spectroscopy ◽  
Grignard Reagent ◽  
31P Nmr ◽  
Second Step ◽  
Step Procedure ◽  
Gas Chromatography Mass Spectroscopy ◽  
High Resolution Mass Spectroscopy ◽  
Resolution Mass

2,9-Dimethyl-11-(3-pentadecylphenoxy)dibenzo[c,f][1,2,5]dithiaphosphepine 11-oxide was synthesized (yield 50%) by a two-step procedure. The first step starts with a benzothiadiphosphole and bis-Grignard reagent, and the second step consists of adding the sodium salt of a derivative of cardanol. The structure of newly synthesized compound was elucidated based on 1H-NMR, 13C-NMR, 31P-NMR, IR, Electron Spray Ionization (ESI)–MS, Gas Chromatography-Mass Spectroscopy (GC–MS), and Electron Spray Ionization-High Resolution Mass Spectroscopy (ESI–HRMS).

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