Sentence examples for bicarbonate scheme from inspiring English sources
Thus, Benzaria et al. reported the synthesis of bis(POM -PMEA 51 by POM -PMEAn of PMEA derivative 48 N -position with a MMTr-group prior to phosphate hydrolysis with TMSBr and subsequent treatment with triethylammonium bicarbonate (Scheme 16).
We propose that Asc (or ascorbate free radical, AFR) bound to Lys292, Lys158 and Phe300 activates the ACCO/Fe(III)–OOH/ACC/HCO3 complex to ACCO/Fe(IV =O)/ACC in cooperation with bicarbonate interacting with Lys158, Lys175 and Arg299 (Scheme 1D and E).
Based on these data, a multi-stage extraction scheme was developed utilising leaching in ammonium bicarbonate followed by citric acid to dissolve secondary carbonate species.
This suggests that Asc and bicarbonate may participate in the same rate-determining step (Scheme 1D to E) with some binding sites in common.
Bicarbonate is the endogenous pH buffer system.
The role of bicarbonate would be to assist the formation of an intermediate complex (Scheme 1D to E) ACCO/Fe(III)═O═O═H involving Asc as the reductant leading to formation of the first water.
The thioamino acids interacted with bicarbonate to form carbamate intermediates, which undergoes a cyclization reaction leading to N-carboxyanhydride and H2S release (Scheme 8).
After 22 h of reaction at room temperature, the mixture was diluted with methylene chloride, washed with sodium bicarbonate, purified, and deacetylated, yielding the 6-morphinyl-α-O-mannopyranoside (5) in a 57 % overall yield (Scheme 3).
One possible limit of the bicarbonate activated H2S prodrugs stems from the reactivity of thiolamino acids, which could quickly undergo amidation reaction under aerobic conditions (Scheme 9).
2 Add the bicarbonate of soda.
