TABLE 1.

¹H and ¹³C NMR spectral data for lenzimycins A and B (1-2) in CDCl₃.

Position	1a				2b
	δC	Type	δH,	mult (J in Hz)	δC	Type	δH,	mult (J in Hz)
1	173.8	C			173.3	C
2	34.1	CH2	2.30	t (7.7)	34.3	CH2	2.30	t (7.0)
3	24.9	CH2	1.60	m	24.9	CH2	1.60	m
4–10	30.0-27.1	CH2	1.31-1.23	m	30.0-27.1	CH2	1.31-1.23	m
11	36.6	CH2	1.27, 1.07	m	36.6	CH2	1.27, 1.07	m
12	34.4	CH	1.28	m	34.4	CH	1.28	m
12-Me	19.2	CH3	0.83	t (6.5)	19.2	CH3	0.84	t (6.5)
13	29.5	CH2	1.25, 1.12	m	29.5	CH2	1.25, 1.12	m
14	11.4	CH3	0.84	t (7.2)	11.4	CH3	0.85	t (7.2)
1′	64.5	CH2	4.11	m	59.8	CH2	3.73	d (5.3)
2′	69.1	CH	3.98	m	72.5	CH	4.97	m
3′	68.1	CH2	4.00, 3.90	m	63.4	CH2	4.08	m
1″″	61.6	CH2	4.19	m	61.2	CH2	4.20	m
2″	49.7	CH2	3.15	m	49.9	CH2	3.14	m
2″-NH			9.64	br s			9.73	br s
2″-N-Me	33.6	CH3	2.70	s	33.7	CH3	2.71	s

^a1H and ¹³C NMR were recorded at 800 MHz and 200 MHz, respectively.^b1H and ¹³C NMR were recorded at 850 MHz and 212.5 MHz, respectively.