TABLE 2.

¹H-NMR data for 1-OH-MDIPU^a

1H-NMR data
7.30 (2H, AA′BB′, H2′/6′, J = 8.5)
7.11 (2H, AA′BB′, H3′/5′, J = 8.5)
7.03 (1H, s(br), N3H)
5.00 (1H, s(br), N1H)
3.56 (1H, ddd, H1", J = 10.4, 6.7, 4.9)
3.50 (1H, ddd, H1", J = 10.4, 6.7, 4.9)
2.78 (1H, hept, H2", J = 6.7)
2.70 (3H, d, NCH3, J = 4.3)
2.54 (1H, t, OH, J = 4.9)
1.19 (3H, d, CH3", J = 6.7)
(1.93 CD3CN)
(2.10 water)

^aThe numbering of ¹H is that described by Glässgen et al. (11), as shown in Fig. 1. Chemical shifts are referenced to CD₃CN (1.93 ppm) (chemical shifts, δ [ppm]; coupling constants, J [Hz]).