Dichloromethane → cis-2-{(5-Fluoro-pyridin-2-ylmethyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentane-carboxylic acid ethyl ester

HRID 731247Notes

Reaction equation

HRID 731247 reaction equation
[CH3:1][S:2]([NH:5][C:6]1[CH:21]=[CH:20][C:9]2[NH:10][C:11]([CH2:16][C:17]([OH:19])=O)=[N:12][S:13](=[O:15])(=[O:14])[C:8]=2[CH:7]=1)(=[O:4])=[O:3].[CH2:22]([O:24][C:25]([C@@H:27]1[CH2:31][CH2:30][CH2:29][C@@H:28]1[NH:32][CH2:33][C:34]1[CH:39]=[CH:38][C:37]([F:40])=[CH:36][N:35]=1)=[O:26])[CH3:23].C1(N=C=NC2CCCCC2)CCCCC1.ClCCl>CN(C)C=O>[CH2:22]([O:24][C:25]([C@@H:27]1[CH2:31][CH2:30][CH2:29][C@@H:28]1[N:32]([CH2:33][C:34]1[CH:39]=[CH:38][C:37]([F:40])=[CH:36][N:35]=1)[C:17](=[O:19])[CH2:16][C:11]1[NH:10][C:9]2[CH:20]=[CH:21][C:6]([NH:5][S:2]([CH3:1])(=[O:3])=[O:4])=[CH:7][C:8]=2[S:13](=[O:14])(=[O:15])[N:12]=1)=[O:26])[CH3:23]

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 10868DicyclohexylcarbodiimideHCID 248585392H-1,2,4-Benzothiadiazine-3-acetic acid, 7-[(methylsulfonyl)amino]-, 1,1-dioxideHCID 69063754cis-2-[(5-Fluoro-pyridin-2-ylmethyl)-amino]-cyclopentanecarboxylic acid ethyl ester

Product 1

HCID 69063590cis-2-{(5-Fluoro-pyridin-2-ylmethyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1lambda6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentane-carboxylic acid ethyl esterYield 48.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
25 °C

Procedure

A solution of (7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetic acid (prepared as described in Example 1j, 0.100 g, 0.300 mmol) and cis-2-[(5-fluoro-pyridin-2-ylmethyl)-amino]-cyclopentanecarboxylic acid ethyl ester (0.080 g, 0.300 mmol) in N,N-dimethylformamide (1.5 mL) was treated with a 1.0 M solution of N,N′-dicyclohexylcarbodiimide in dichloromethane (0.315 mL, 0.315 mmol). The reaction was stirred for 6 h at 25° C., the urea byproduct was filtered off and the crude material was purified by prep-HPLC [Column Luna 5μ C18 (2) 100 Å AXIA 50×21.2 mm, 5 micron, 30%-90% in 7 min @ 30 mL/min flow rate, 0.05% trifluoroacetic acid in acetonitrile/0.05% trifluoroacetic acid in water] to afford the desired product, cis-2-{(5-fluoro-pyridin-2-ylmethyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)-acetyl]-amino}-cyclopentanecarboxylic acid ethyl ester (0.085 g, 0.146 mmol, 48.7%), as a white solid. LC-MS (ESI) calcd for C24H28FN5O7S2 581.14, found 582.2 [M+H+].

Workup

  1. filtrationthe urea byproduct was filtered off
  2. customthe crude material was purified by prep-HPLC [Column Luna 5μ C18 (2) 100 Å AXIA 50×21.2 mm, 5 micron, 30%-90% in 7 min

Sources & evidence

ORD record
ord-6036ab5591b14b90a2f2d9ffea92f863
Source dataset
uspto-grants-2009_09
Patent number
US07582626B2

Reaction notes

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