Azzindani/Open_Reaction_Data huggingface dataset:
Reaction SMILES: Cl.[NH2:2][C@H:3]1[C:9](=[O:10])[N:8]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([CH:18]([CH3:20])[CH3:19])=[CH:14][CH:13]=2)[C:7]2[CH:21]=[CH:22][CH:23]=[CH:24][C:6]=2[O:5][CH2:4]1.[CH2:25]([O:27][C:28](=[O:51])[C@H:29](OS(C1C=CC([N+]([O-])=O)=CC=1)(=O)=O)[CH2:30][CH2:31][CH:32]1[CH2:37][CH2:36][CH2:35][CH2:34][CH2:33]1)[CH3:26].CN1CCOCC1>CCCCCC.C(OCC)(=O)C>[CH2:25]([O:27][C:28]([C@@H:29]([NH:2][C@H:3]1[C:9](=[O:10])[N:8]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([CH:18]([CH3:20])[CH3:19])=[CH:14][CH:13]=2)[C:7]2[CH:21]=[CH:22][CH:23]=[CH:24][C:6]=2[O:5][CH2:4]1)[CH2:30][CH2:31][CH:32]1[CH2:33][CH2:34][CH2:35][CH2:36][CH2:37]1)=[O:51])[CH3:26]
Reactant: CCOC(=O)[C@@H](CCC1CCCCC1)OS(=O)(=O)c1ccc([N+](=O)[O-])cc1
Reactant: CC(C)c1ccc(CN2C(=O)[C@H](N)COc3ccccc32)cc1
Agent: Cl
Solvent: CCOC(C)=O
Solvent: CN1CCOCC1
Solvent: CCCCCC
Product: CCOC(=O)[C@H](CCC1CCCCC1)N[C@@H]1COc2ccccc2N(Cc2ccc(C(C)C)cc2)C1=O

Procedure:
Obtained analogously to the directions in Example 1c) starting from (R)-3-amino-5-(p-isopropylbenzyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine hydrochloride, 2.93 g of (R)-alpha-[[(4-nitrophenyl)sulfonyl]oxy]-4-cyclohexylbutyric acid ethyl ester and 1.85 ml of N-methylmorpholine. Colourless resin, Rf value (eluant hexane/ethyl acetate 4:1): 0.36.