in methanol byproducts: N2, HCl; addn. of the isocyanide to the Re compd. in MeOH and refluxing for 2 h; concn. (vac.), addn. of Et2O and petroleum ether and recrystn. from CH2Cl2-Et2O;

in methanol byproducts: N2, HCl; addn. of the isocyanide to the Re compd. in MeOH and refluxing for 2 h; concn. (vac.), addn. of Et2O and petroleum ether and recrystn. from CH2Cl2-Et2O;

in methanol byproducts: N2, HCl; addn. of the isocyanide to the Re compd. in MeOH and refluxing for 2 h; concn. (vac.), addn. of Et2O and petroleum ether and recrystn. from CH2Cl2-Et2O;