Benzyl 4-azido-3-hydroxyazepane-1-carboxylate → 4-(4-Morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azepane-1-carboxylic acid benzyl ester

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Reaction Steps

The crude 4-amino-3-hydroxy-azepane-1-carboxylic acid benzyl ester was coupled to 4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyric acid and oxidized, as described above, to yield 4-(4-morpholin-4-yl-4-oxo-2-benzylsulfonylmethyl-butyrylamino)-3-oxo-azepane-1-carboxylic acid benzyl ester; 1H NMR: (DMSO) 8.46–8.42 (m, 1H), 7.44–7.24 (m, 10H), 5.18–5.04 (m, 2H), 4.52–4.33 (m, 4H), 4.04–3.76 (m, 2H), 3.58–3.30 (m, 11H), 3.11–3.03 (m, 1H), 2.96–2.78 (m, 1H), 2.72–2.57 (m, 1H), 1.84–1.55 (m, 4H); MS: (M+H)+ 600.

Provenance & Evidence