The 1H nuclear magnetic resonance (NMR) and 13C NMR spectra were obtained on a Bruker Biospin Avance 400 spectrometer with tetramethylsilane (TMS) as the internal standard. Electrospray ionization–mass spectrometry (ESI–MS) was performed on an Agilent 6430 LC/MS/MS and a 1100 LC/MS spectrometer. The high-performance liquid chromatography (HPLC) system comprised a Hitachi Model L-2130 pump, L-2400 UV detector, and YMC J’sphere ODS H-80 column (4 mm, 20 × 150 mm, YMC Co., Ltd).
1100 lc ms spectrometer
Manufactured by Agilent Technologies
The 1100 LC/MS spectrometer is a liquid chromatography-mass spectrometry (LC/MS) instrument designed for analytical applications. It combines the separation capabilities of liquid chromatography with the identification and quantification capabilities of mass spectrometry. The 1100 LC/MS spectrometer is capable of analyzing a wide range of chemical compounds in complex samples.
Automatically generated - may contain errors
Lab products found in correlation
6430 lc ms ms, by Agilent Technologies (2 mentions)
J sphere ods h80 column, by YMC (1 mentions)
Avance 400 spectrometer, by Bruker (1 mentions)
Kieselgel 60 f254 plate, by Merck Group (1 mentions)
Kieselgel 60, by Merck Group (1 mentions)
Ecs 400 spectrometer, by JEOL (1 mentions)
Ultimate 3000 lc system, by Thermo Fisher Scientific (1 mentions)
3 protocols using 1100 lc ms spectrometer
1
NMR and MS Analysis Protocol
2
Spectroscopic Analysis of Natural Compounds
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The 1H NMR (400 MHz) and 13C NMR (100 MHz) spectra were obtained on JEOL ECS400 spectrometer, with CD3OD as a solvent. The ESI-MS was determined using an Agilent 6430 LC/MS/MS and 1100 LC/MS spectrometer. Reversed-phase CC was carried out using RP-C18 silica gel (Cosmosil 140C18-PREP, 140 μm, Nacalai tesque, INC.). Silica gel CC was conducted using Kieselgel 60 (70–230 and 230–400 mesh, Merck). TLC was conducted using Kieselgel 60 F254 plates (Merck).
3
Synthesis and Purification of Compound 5
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Reagents and solvents were purchased from
commercial sources without further purification. The final compounds
were purified by preparative thin-layer chromatography (Analtech #Z513059).
All compounds were >95% pure by HPLC analysis. The progress of
reactions
was monitored by thin-layer chromatography (TLC). NMR spectra were
obtained from a 400 or 600 MHz Bruker spectrometer. Electrospray ionization
mass spectrometry (ESI-MS) was performed on an Agilent 1100 LC-MS
spectrometer. Melting points were determined with a Yanagimoto hot-stage
melting point apparatus and are uncorrected. Purity of5 was analyzed by a Dionex UltiMate 3000 LC system.
commercial sources without further purification. The final compounds
were purified by preparative thin-layer chromatography (Analtech #Z513059).
All compounds were >95% pure by HPLC analysis. The progress of
reactions
was monitored by thin-layer chromatography (TLC). NMR spectra were
obtained from a 400 or 600 MHz Bruker spectrometer. Electrospray ionization
mass spectrometry (ESI-MS) was performed on an Agilent 1100 LC-MS
spectrometer. Melting points were determined with a Yanagimoto hot-stage
melting point apparatus and are uncorrected. Purity of
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