Ethyl Acetate → t-Butyl alpha-[6-(1-butoxycarbonyl-3-phenylpropylamino)-5-oxo-2-(3-thienyl)perhydro-1,4-thiazepin-4-yl]acetate

HRID 256056Notes

Reaction equation

HRID 256056 reaction equation
[NH2:1][CH:2]1[CH2:8][S:7][CH:6]([C:9]2[CH:13]=[CH:12][S:11][CH:10]=2)[CH2:5][N:4]([CH2:14][C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[C:3]1=[O:22].Br[CH:24]([CH2:32][CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[C:25]([O:27][CH2:28][CH2:29][CH2:30][CH3:31])=[O:26].C(OCC)(=O)C>C(Cl)Cl>[CH2:28]([O:27][C:25]([CH:24]([NH:1][CH:2]1[CH2:8][S:7][CH:6]([C:9]2[CH:13]=[CH:12][S:11][CH:10]=2)[CH2:5][N:4]([CH2:14][C:15]([O:17][C:18]([CH3:19])([CH3:21])[CH3:20])=[O:16])[C:3]1=[O:22])[CH2:32][CH2:33][C:34]1[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=1)=[O:26])[CH2:29][CH2:30][CH3:31]

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 13854075t-Butyl alpha-[6-amino-5-oxo-2-(3-thienyl)perhydro-1,4-thiazepin-4-yl]acetateHCID 20164900HCID 20164900, compound

Product 1

HCID 20164835t-Butyl alpha-[6-(1-butoxycarbonyl-3-phenylpropylamino)-5-oxo-2-(3-thienyl)perhydro-1,4-thiazepin-4-yl]acetate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

0.66 g of t-butyl α-[6-amino-5-oxo-2-(3-thienyl)perhydro-1,4-thiazepin-4-yl]acetate [synthesized as described in Example 42(g)] was N-alkylated using 0.86 g of butyl 2-bromo-4-phenylbutyrate by the same procedure as is described in Example 42(h). The reaction product was subjected to silica gel column chromatography using a 1:20 by volume mixture of ethyl acetate and methylene chloride, to give two isomers, A and B (ascribed to the asymmetric carbon atom to which the phenethyl group is attached).

Workup

  1. customto give two isomers

Sources & evidence

ORD record
ord-00091b8b460e4230ae5d628a5ed9b4db
Source dataset
uspto-grants-1987_10
Patent number
US04699905

Reaction notes

Loading…