Table 2.

Selected ¹H NMR chemical shifts (in ppm) for pyrroles 3a–c and 8a–c.

Position	3a	3b	3c	8a	8b	8c
3	4.59	4.60	4.60	4.60	4.60	4.59
6	5.36	5.39	5.40	5.36	5.36	5.36
16	-	-	-	4.97	4.98	4.95
18	0.91	0.87	0.88	0.90	0.95	0.90
19	1.07	1.07	1.08	1.02	1.04	1.03
20	-	-	-	2.99	3.06	3.05
21	1.98	1.95	1.96	0.84	1.22	1.23
23, 24	-	-	-	5.85	5.78	5.75
26	3.82, 3.77	3.94	3.98, 3.93	2.09	2.20	2.18
27	0.84	0.98	1.00	-	-	-

All NMR spectra were acquired in CDCl₃ from a 600 MHz NMR spectrometer.