Models of folate coenzymes 141 1 Part 13. A.R. Stoit and U.K. Pandit, Tetrahedron, preceding paper. An alternate approach to the yohimbane skeleton

Article abstract of DOI:10.1016/S0040-4020(01)96687-6

The anion of dimethyl homophthalate adds to imidazolinium and tetrahydropyrimidinium salts (2a,b) to yield imidazolidine and tetrahydropyrimidine adducts corresponding to methylenetetra-hydrofolate models (3a,b). These models transfer the carbon fragment