ERYTHROMYCIN A 9-0-OXIME DERIVATIVES ENDOWED WITH ANTIBIOTIC ACTIVITY
PCT No. PCT/EP95/04815 Sec. 371 Date May 16, 1997 Sec. 102(e) Date May 16, 1997 PCT Filed Dec. 7, 1995 PCT Pub. No. WO96/18633 PCT Pub. Date Jun. 20, 1996Erythromycin 9-oxime derivatives wherein a phenyl or heterocylic group is attached indirectly to the 9-position of erythromycin A through an alkylene diamine bridging member. These compounds exhibit broad spectrum antibiotic activity.
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(2008/06/13)
Preparation of esters and amides from carboxylic acids by activation with dialkyl phosphite-carbon tetrachloride mixture
A simple one pot phase transfer catalytic method is described for the synthesis of carboxylic amides and esters from carboxylic acids and amines or alcohols, respectively. For the activation of the carboxylic acids 'in situ' generated phosphoric acid diester chlorides were applied.
Jaszay, Zsuzsa M.,Petnehazy, Imre,Toke, Laszlo
p. 2761 - 2768
(2007/10/03)
Synthesis of dipeptides using polymer bound hydroxamic esters - A comparative study of reactivity
Poly(Methyl methaery late) and polystyrene supported hydroxamic esters have been prepared and developed as a new class of recyclable solid phase acylating reagents for the synthesis of peptides. The crosslinking agents used are DVB (divinyl benzene). EGDM
Sophiamma,Sreekumar
p. 995 - 999
(2007/10/03)
An Efficient and Simple Thallium(III)-Induced Cleavage of the Hydrazino Moiety
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Kocevar, Marijan,Mihorko, Polona,Polanc, Slovenko
p. 1466 - 1469
(2007/10/02)
INFLUENCE OF ADDITIVES ON SUPPRESSION OF RACEMIZATION IN PEPTIDE SYNTHESIS. PART IV. THE USE OF ADDITIVES FOR SUPPRESSION OF RACEMIZATION IN PEPTIDE SYNTHESIS BY THE METHOD OF MIXED ANHYDRIDES
The changes of employing antiracemization additives in peptide synthesis by the method of mixed anhydrides were investigated by the Anderson and NMR tests.
Przybylski, Jozef,Sokolowska, Barbara
p. 455 - 468
(2007/10/02)
Synthesis of active benzhydroxamic esters of N-protected amino acids and peptides and their use for the synthesis of optically homogenous peptides
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Lubiewska-Nakonieczna,Rzeszotarska,Taschner
p. 157 - 166
(2007/10/08)
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