Table 1.

¹H and ¹³C NMR Data for DMMC (1) Recorded in CDCl₃ at 400 and 100 MHz, Respectively.

Residue	Position	δC	δH, mult., J (Hz)	HMBCa
Map	1	172.8
	2	42.7	2.76, qd (7.0, 1.6)	1, 3
	3	51.4	4.52, m
	4 (NH)		7.07, d (10.1)	3, 8
	5	10.0	1.10, d (7.0)	1, 2, 3
	6	26.3	1.56, m;1.48, m	2, 3, 7
	7	11.2	0.93, t (7.4)	3, 6
Ala	8	173.0
	9	48.5	4.45, m	8, 11
	10 (NH)		7.76, d (7.9)	9, 11, 12
	11	15.7	1.07, d (7.9)	8, 9
Ibu	12	172.3
	13	55.1
	14	210.3
	15	52.0	4.92, m	14, 19
	16 (NH)		7.32, d (6.4)	14, 15, 20
	17	22.5	1.53, s	12, 13, 14, 18
	18	21.7	1.48, s	12, 13, 14, 17
	19	19.3	1.16, d (6.8)	14, 15
N-Me Phe	20	168.0
	21	61.0	5.23, m	20, 23, 24, 30
	22 (N)
	23	35.7	3.31, dd (14.0, 6.3)	20, 21, 24, 25/29
			2.89, dd (14.0, 8.2)
	24	137.0
	25/29	129.7	7.25, m	23, 24, 26/28, 27
	26/28	129.0	7.28, m	24, 25/29
	27	127.2	7.20, t (6.9)	25/29
	30	29.5	2.99, s	21, 31
N-MeVal	31	170.4
	32	58.3	4.79, d (10.6)	31, 34, 35, 36, 37, 38
	33 (N)
	34	27.3	2.22, m	32, 35, 36
	35	18.7	0.33, d (6.4)	32, 34, 36
	36	18.6	0.74, d (6.5)	32, 34, 35
	37	29.5	2.97, s	32, 38
Gly	38	169.5
	39	40.8	4.62, dd (17.6, 7.9)	38, 41
			3.47, d (17.6)
	40 (NH)		7.58 d (7.9)	41
N-MeIle	41	171.3
	42	61.4	4.91, m	41, 44, 45, 47, 48, 49
	43 (N)
	44	33.0	2.11, m
	45	25.2	1.46, m;1.11, m	44
	46	10.3	0.89, m	44, 45
	47	15.8	1.03, d (7.3)	42, 44, 45
	48	30.6	3.22, s	42, 49
Gly	49	170.2
	50	41.0	4.44, m	49, 52
			3.57, dd (15.9, 4.6)
	51 (NH)		7.36, t (5.5)	49, 50
Hmpa	52	170.7
	53	78.6	5.21, m	1, 52, 54, 55, 57
	54	37.6	2.07, m
	55	24.0	1.47, m;1.24, m	53, 54, 56
	56	11.9	0.90, m	54, 55
	57	15.4	0.90, m	53, 54

^aProton showing correlation to indicated carbon resonance.