Trifluoroacetic acid → 4-(9-cyclopentyl-5,7,7-trimethyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acid

HRID 1044094Notes

Reaction equation

HRID 1044094 reaction equation
Cl[C:2]1[N:3]=[CH:4][C:5]2[N:11]([CH3:12])[C:10](=[O:13])[C:9]([CH3:15])([CH3:14])[CH2:8][N:7]([CH:16]3[CH2:20][CH2:19][CH2:18][CH2:17]3)[C:6]=2[N:21]=1.[NH2:22][C:23]1[CH:31]=[CH:30][C:26]([C:27]([OH:29])=[O:28])=[CH:25][C:24]=1[O:32][CH3:33].C(O)(C(F)(F)F)=O>>[CH:16]1([N:7]2[CH2:8][C:9]([CH3:15])([CH3:14])[C:10](=[O:13])[N:11]([CH3:12])[C:5]3[CH:4]=[N:3][C:2]([NH:22][C:23]4[CH:31]=[CH:30][C:26]([C:27]([OH:29])=[O:28])=[CH:25][C:24]=4[O:32][CH3:33])=[N:21][C:6]2=3)[CH2:20][CH2:19][CH2:18][CH2:17]1

Participants

4

Reactant 3

HCID 6422Trifluoroacetic acidHCID 2880572486-69-3HCID 592951162-Chloro-9-cyclopentyl-5,7,7-trimethyl-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one2×

Product 1

HCID 426107874-(9-cyclopentyl-5,7,7-trimethyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acidYield 76%

Procedure

2-Chloro-9-cyclopentyl-5,7,7-trimethyl-8,9-dihydro-5H-pyrimido[4,5-b][1,4]diazepin-6(7H)-one (Intermediate 3) (0.35 g, 1.14 mmol, 1 eq), 4-amino-3-methoxybenzoic acid (0.57 g, 3.42 mmol, 3 eq) and TFA (0.42 mL, 5.7 mmol, 5 eq) were heated to reflux in TFE (10 mL) for 36 hours. Solvent was evaporated in vacuo and the resulting residue was triturated with EtOAc to give 4-(9-cyclopentyl-5,7,7-trimethyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-methoxybenzoic acid (0.38 g, 76%).

Workup

  1. temperatureto reflux in TFE (10 mL) for 36 hours
  2. customSolvent was evaporated in vacuo
  3. customthe resulting residue was triturated with EtOAc

Sources & evidence

ORD record
ord-e2702f07135243938cd2e7458ca5bed5
Source dataset
uspto-grants-2013_10
Patent number
US08563542B2

Reaction notes

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