atom_id	symbol	chemical_shift	mult	coupling
17	H	2.3	s	NA
18	H	2.3	s	NA
19	H	2.3	s	NA
20	H	6.43	d	15.7
21	H	6.99	d	15.7
22	H	NA	NA	NA
23	H	1.89	d	1.5
24	H	1.89	d	1.5
25	H	1.89	d	1.5
26	H	5.93	s	NA
27	H	2.59	d	18.3
28	H	2.28	d	18.3
29	H	1.06	s	NA
30	H	1.06	s	NA
31	H	1.06	s	NA
32	H	1.01	s	NA
33	H	1.01	s	NA
34	H	1.01	s	NA
