Table 1:

NMR data and assignments for Pyrrolocin A, collected in CD₃OD.

Pos.	δC, Type	δH	COSY	HMBC	ROESY
1	198.3, C
2	50.5, C
2-Me	14.3, CH3	1.44		1, 2, 3	8, 11
3	41.2, CH	1.69	8	4	12
4	29.4, CH2	1.09	3, 5	6, 8
		2.00
5	37.0, CH2	1.09	4, 6	3, 6, 7, 6-Me
		1.77
6	34.8, CH	1.53	5, 7, 6-Me		7, 8, 6-Me
6-Me	22.9, CH3	0.94	6	5, 6, 7	6
7	43.9, CH2	0.87		5, 6, 8, 9, 6-Me
		1.83			6
8	40.5, CH	1.87	3, 7, 9	3, 9, 10	6, 9, 2-Me
9	127.2, CH	5.22		3, 7, 11, 10-Me	8
10	132.8, C
10-Me	22.6, CH3	1.58		9, 10, 11	12
11	50.8, CH	3.23	12	2	2-Me
12	132.7, CH	5.27	11, 13	11, 14	3, 14, 10-Me
13	133.9, CH	5.81	12	11, 14
14	133.4, CH	5.93	15	13, 16	12
15	130.7, CH	5.53	14, 16	14, 16, 17
16	43.3, CH2	2.13	15, 17	14, 15, 17, 18
		2.17
17	68.5, CH	3.72	16, 18	15, 16, 18
18	23.0, CH3	1.12	17	16, 17
2′	178.1, C
3′	102.1, C
4′	192.6, C
5′	69.4, CH	3.68	6′	4′
6′	59.9, CH2	3.89		4′,5′
		3.95
N-Me	27.3, CH3	3.03		2′, 5′

Recorded at 150 MHz for ¹³C and 600 MHz for ¹H.