PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
28208826-4	2017	The main effective components of Aconitum plants are diterpenoid alkaloids-which are divided into C18-, C19-, C20-, and bis-diterpenoid alkaloids-are reportedly some of the most promising, naturally abundant compounds for treating cancer.	Alkaloids	65-74	Bardet-Biedl syndrome 9	Homo sapiens	98-101	
31387012-0	2019	Purification of tertiary and quaternary alkaloids from Rhizoma Corydalis using reversed-phase/weak cation-exchange mixed-mode class separation combined with preparative C18 and silica based strong cation-exchange chromatography.	Alkaloids	40-49	Bardet-Biedl syndrome 9	Homo sapiens	169-172	
28858498-1	2017	The secondary metabolites that comprise the diterpenoid alkaloids are categorized into C18, C19, and C20 families depending on the number of contiguous carbon atoms that constitute their central framework.	Alkaloids	56-65	Bardet-Biedl syndrome 9	Homo sapiens	87-90	
21486531-5	2010	METHODS: The separation of the relevant alkaloids was carried out on a C18 column and detected at a UV wavelength of 228 nm.	Alkaloids	40-49	Bardet-Biedl syndrome 9	Homo sapiens	71-74	
26695288-7	2016	Finally, the application of C18-DTT column was demonstrated in the separation of non-steroidal anti-inflammatory drugs, aromatic carboxylic acids, alkaloids, nucleo-analytes and polycyclic aromatic hydrocarbons.	Alkaloids	147-156	Bardet-Biedl syndrome 9	Homo sapiens	28-31	
26675722-8	2015	Specifically, it affords not only the targeted natural products, but also intermediates and derivatives in the three families of diterpenoid alkaloids (C-18, C-19 and C-20), and so provides a unified synthetic strategy for these natural products.	Alkaloids	141-150	Bardet-Biedl syndrome 9	Homo sapiens	152-156	
23411141-1	2013	While tailing and overloading of basic compounds remain problematic on most RP columns, a new kind of positively charged RP column named XCharge C18 was found to be superior good for the separation of alkaloids in our practical use.	Alkaloids	201-210	Bardet-Biedl syndrome 9	Homo sapiens	145-148	
9170287-4	1997	With HBr-AcOH, in the case of alkaloids possessing a C-3 hydroxyl group, the methoxymethyl at C-18 formed a tetrahydrofuran, cyclizing at the C-6 position.	Alkaloids	30-39	Bardet-Biedl syndrome 9	Homo sapiens	94-98	
16272741-3	2005	This comparison indicated that simply methods as C18 RP-HPLC and GC are the more effective techniques, and more suitable than others for this preparation, for the separation of two alkaloids.	Alkaloids	181-190	Bardet-Biedl syndrome 9	Homo sapiens	49-52	
2032020-2	1991	A C18 column was used to separate scopolamine from the additional alkaloids and other biological material present in the vegetal extract.	Alkaloids	66-75	Bardet-Biedl syndrome 9	Homo sapiens	2-5