Add new monomers to the library

[ljubica-milovic]

• [x] Maleimide Location in the library: CHEM Name in the library: Maleimide Abbreviation in the library: Mal Attachment points/leaving groups: R1=H, R2=H Structure: Maleimide.zip

• [x] Tetraxetan Location in the library: CHEM Name in the library: Tetraxetan Abbreviation in the library: DOTA Attachment points/leaving groups: R1=OH, R2=OH, R3=OH, R4=OH Structure: Tetraxetan.zip

• [x] Tetraethylene glycol Location in the library: CHEM Name in the library: Tetraethylene glycol Abbreviation in the library: PEG-4 Attachment points/leaving groups: R1=H, R2=OH Structure: Tetraethylene glycol.zip

• [x] Hexaethylene glycol Location in the library: CHEM Name in the library: Hexaethylene glycol Abbreviation in the library: PEG-6 Attachment points/leaving groups: R1=H, R2=OH Structure: Hexaethylene glycol.zip

• [x] 4-formylbenzamide Location in the library: CHEM Name in the library: 4-Formylbenzamide Abbreviation in the library: 4FB Attachment points/leaving groups: R1=NH2, R2=O Structure: 4-formylbenzamide.zip

[AlexeyGirin]

Verified.

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