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Potential chemical building blocks for a molecular 3D printer [351].
| Building Block Molecule | Number of Low-Reactive Substituents at the C Atom | Number of Activated Substituents at the C Atom | Number of Atom-Economical Steps |
|---|---|---|---|
|
4 | 0 | 0 |
|
2 | 0 | 1 |
|
0 | 1 | 2 |
