Benzylamine, N,N-bis(2-chloroethyl)-p-chloro- → 4-(4-But-2-ynyloxy-benzenesulfonyl)-1-(4-chloro-benzyl)-piperdine-4-carboxylic acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4](=[O:20])[CH2:5][S:6]([C:9]1[CH:14]=[CH:13][C:12]([O:15][CH2:16][C:17]#[C:18][CH3:19])=[CH:11][CH:10]=1)(=[O:8])=[O:7])[CH3:2].[Cl:21][C:22]1[CH:35]=[CH:34][C:25]([CH2:26][N:27]([CH2:31][CH2:32]Cl)[CH2:28][CH2:29]Cl)=[CH:24][CH:23]=1>>[CH2:1]([O:3][C:4]([C:5]1([S:6]([C:9]2[CH:10]=[CH:11][C:12]([O:15][CH2:16][C:17]#[C:18][CH3:19])=[CH:13][CH:14]=2)(=[O:7])=[O:8])[CH2:29][CH2:28][N:27]([CH2:26][C:25]2[CH:34]=[CH:35][C:22]([Cl:21])=[CH:23][CH:24]=2)[CH2:31][CH2:32]1)=[O:20])[CH3:2]Participants
3
Procedure
4-(4-But-2-ynyloxy-benzenesulfonyl)-1-(4-chloro-benzyl)-piperdine-4-carboxylic acid ethyl ester was prepared according to the general method as outlined in Example 1 (Step 6). Starting from (4-but-2-ynyloxy-benzenesulfonyl)-acetic acid ethyl ester (4 g, 13.5 mmol) and (4-chloro-benzyl)-bis-(2-chloro-ethyl)-amine (4.9 g, 16.2 mmol). Yield 3.5 g (53%); white crystals; MP 91.8° C.; MS: 490 (M+H)+.
Sources & evidence
- ORD record
- ord-b03569a586a64056997051c711dbac5e
- Source dataset
- uspto-grants-2004_06
- Patent number
- US06753337B2
Reaction notes
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