Name and structure

S1

5,7-bis[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-1H- 1,4-diazepine-2,3-dicarbonitrile

S2

4-[(E)-2-(2-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]- 5H-pyrido[2,3-b][1,4]diazepin-4-yl}ethenyl]-2-methoxyphenol

S3

6,8-bis[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-5H- pyrazino[2,3-b][1,4]diazepine-2,3-dicarbonitrile

S4

4-[(E)-2-(3-bromo-8-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]- 5H-pyrazino[2,3-b][1,4]diazepin-6-yl}ethenyl]-2-methoxyphenol

S5

4-[(E)-2-{8-bromo-4-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]- 1H-pyrido[2,3-b][1,4]diazepin-2-yl)ethenyl]-2-methoxyphenol

S6

4-[(E)-2-(5-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-1-(pyrimidin-2-yl)- 1H-pyrazol-3-yl}ethenyl]-2-methoxyphenol

S7

4-[(4Z)-5-amino-7-(4-hydroxy-3-methoxyphenyl)-3- iminohept-4-en-1-yl]-2-methoxyphenol