3,3-Spiro-α-Proline Building Blocks: Structural Features, Complementary Synthetic Routes, and Multigram-Scale Preparation
The side chain of proline connects back to the amino nitrogen to form a five-membered pyrrolidine ring, giving proline conformational characteristics distinct from those of most α-amino acids. Attaching a second carbocycle or heterocycle at the C3 position of proline produces a ...
危险品化学品经营许可证(带存储)