A mild method for the syntheses of 3′-thioformacetal dinucleotides: The development of diphenylphosphinate as a glycosyl donor
摘要:
A mild and efficient procedure for the syntheses of 3'-thioformacetal dinucleotides is presented. The glycosylation synthon agent, diphenylphosphinate formacetal was developed as the intermediate for the coupling reaction under mild basic conditions. This method is compatible with purine deoxyribosides, unprotected amino groups and acid labile functionalities.
A mild method for the syntheses of 3′-thioformacetal dinucleotides: The development of diphenylphosphinate as a glycosyl donor
摘要:
A mild and efficient procedure for the syntheses of 3'-thioformacetal dinucleotides is presented. The glycosylation synthon agent, diphenylphosphinate formacetal was developed as the intermediate for the coupling reaction under mild basic conditions. This method is compatible with purine deoxyribosides, unprotected amino groups and acid labile functionalities.
A practical stereoselective synthesis of (2S, 4S)-4-tert-butoxycarbonylamino-2-methylpyrrolidine
作者:Qun Li、Daniel T.W. Chu、Kathleen Raye、Akiyo Claiborne、Louis Seif、Bryan Macri、Jacob J. Plattner
DOI:10.1016/0040-4039(95)01813-w
日期:1995.11
Two practical syntheses of (2S, 4S)-4-tert-butoxycarbonylamino-2-methylpyrrolidine, an important intermediate for quinolone antibacterial agents, have been developed through the combination of diastereo and enantioselective reactions starting from ethyl crotonate and L-alanine, respectively.