; H, eight.54. four.two.9. 17,23-Epoxy-3-hydroxy-19-norchola-1,3,5(10)-triene (13)–To a resolution of 12 (45.9 mg, 0.142 mmol
Chemexpress ; H, eight.54. four.two.9. 17,23-Epoxy-3-hydroxy-19-norchola-1,three,five(10)-triene (13)–To a answer of 12 (45.9 mg, 0.142 mmol) in THF (7 mL) at 0 was added a resolution of methyl magnesium bromide in ether…