PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33596072-6 2021 When using CCl4 as a halogenating agent, the reaction of chlorinated spirophosphorane proceeds via SN2(P-V) mechanism, and the backside attack of P-Cl bond is the main pathway. Phosphorus 103-104 C-C motif chemokine ligand 4 Homo sapiens 11-15