title: Improved preparation of a prostaglandin intermediate; 2-chloro-2-cyano- 5-7-syn-methoxymethyl bicyclo (2.2.1) heptene.
mesh_terms: D000478:Alkylation; D001952:Bridged-Ring Compounds / Q000138:chemical synthesis*; D003517:Cyclopentanes; D008722:Methods; D008738:Methyl Ethers / Q000138:chemical synthesis; D009570:Nitriles / Q000138:chemical synthesis; D011453:Prostaglandins / Q000138:chemical synthesis*; D013793:Thallium
chemical_list: D001952:Bridged-Ring Compounds; D003517:Cyclopentanes; D008738:Methyl Ethers; D009570:Nitriles; D011453:Prostaglandins; D013793:Thallium