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. 2020 Aug 25;9(9):787. doi: 10.3390/antiox9090787

Table 1.

Structures and yield of synthetic polyhydroxy amides (1 to 10), and ureas (11 to 18) prepared.

graphic file with name antioxidants-09-00787-i001.jpg

Compound R1 R2 R3 R4 R5 R2′ R3′ R4′ R5′ X Yield (%)
1 H OH H OH H OH H H OH CH2 41
2 H OH H H OH OH H OH H CH2 44
3 H H H OH H OH H H OH CH2 79
4 H OH H H OH OH H H OH CH2 79
5 H OH H OH H OH H OH H CH2 94
6 H H OH OH H OH H H OH CH2 56
7 H H H OH H H OH OH H CH2 75
8 H H H OH H OH H OH H CH2 80
9 (4-OH)Ph H H OH H OH H H OH CH2 72
10 (2,5-OH)Bn H H OH H OH H H OH CH2 81
11 H OH H OH H OH H H OH NH 95
12 H OH H H OH H H OH H NH 56
13 H OH H H OH H OH OH H NH 68
14 H H OH OH H H H OH H NH 60
15 H H H OH H H H OH H NH 84
16 H OH H H OH OH H H OH NH 20
17 (4-OH)Ph H H OH H H H OH H NH 68
18 (2,5-OH)Bn H H OH H OH H H OH NH 10