Bz group

Lobelanidine Both Bz groups become CjHg. CHOH. 

The influence of the length of the peptide chain on the coordination mode in [RsSnfrV)] complexes has recently been studied. The Gly-Gly-Gly moiety proved to be long enough to shade the —I effect of the Bz group in its N-Bz derivatives [R3Sn(IV)] complexes of N-Bz-Gly-Gly-Gly were considered to be polymeric, with monodentate carboxylate and -C = O coordination similar to that in the corresponding complexes of N-acetylated peptides. ... 

Trityl ethers are stable to bases and nucleophiles but are readily cleaved by acids or by hydrogenolysis (Pd, H2). The trityl group may be selectively cleaved in the presence of fer -butyldimethylsilyl, triethylsilyl, or benzoyl (Bz) groups. ... 

One Bz group becomes CjHj. CHOH. Both Bz groups become CgHg. CHOH. Lobelanidine with NCHg becoming NH. 

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