A new procedure for the conversion of thiols into reactive sulfenylating agents
摘要:
Thiols may be converted in high yield into unsymmetrical 2-pyridyl disulfides 3. Treatment of these with alkylating agents (e.g., alkyl fluorosulfonates or oxonium salts) affords the corresponding N-alkylpyridyl disulfides 4, which are potent sulfenylating agents (Scheme II) and react smoothly with a variety of sulfur nucleophiles (e.g., thiols, thiones, thioamides, dithiocarbamates, thiocyanate, etc.) to afford disulfides, with amines to afford sulfenamides, and with beta-diketones to afford sulfides. This new method is particularly well-suited to the preparation of unsymmetrical disulfides and sulfenamides from complex and otherwise reactive thiols.
A new procedure for the conversion of thiols into reactive sulfenylating agents
摘要:
Thiols may be converted in high yield into unsymmetrical 2-pyridyl disulfides 3. Treatment of these with alkylating agents (e.g., alkyl fluorosulfonates or oxonium salts) affords the corresponding N-alkylpyridyl disulfides 4, which are potent sulfenylating agents (Scheme II) and react smoothly with a variety of sulfur nucleophiles (e.g., thiols, thiones, thioamides, dithiocarbamates, thiocyanate, etc.) to afford disulfides, with amines to afford sulfenamides, and with beta-diketones to afford sulfides. This new method is particularly well-suited to the preparation of unsymmetrical disulfides and sulfenamides from complex and otherwise reactive thiols.
Provided are lipid amine compounds which are useful in the preparation of lipid nanoparticle compositions for delivery of therapeutic or prophylactic payload into cells.