1-Hydroxybenzotriazole → 4-(9-Cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-ethyl-N-(1-methylpiperidin-4-yl)benzamide

HRID 1676727

Reaction equation

HRID 1676727 reaction equation
[CH:1]1([N:6]2[CH2:12][C:11]([F:14])([F:13])[C:10](=[O:15])[N:9]([CH3:16])[C:8]3[CH:17]=[N:18][C:19]([NH:21][C:22]4[CH:30]=[CH:29][C:25]([C:26]([OH:28])=O)=[CH:24][C:23]=4[CH2:31][CH3:32])=[N:20][C:7]2=3)[CH2:5][CH2:4][CH2:3][CH2:2]1.ON1C2C=CC=CC=2N=N1.F[P-](F)(F)(F)(F)F.CN(C(N(C)C)=[N+]1C2C=CC=CC=2[N+]([O-])=N1)C.C(N(C(C)C)CC)(C)C.[NH2:76][CH:77]1[CH2:82][CH2:81][N:80]([CH3:83])[CH2:79][CH2:78]1>CN(C)C=O>[CH:1]1([N:6]2[CH2:12][C:11]([F:13])([F:14])[C:10](=[O:15])[N:9]([CH3:16])[C:8]3[CH:17]=[N:18][C:19]([NH:21][C:22]4[CH:30]=[CH:29][C:25]([C:26]([NH:76][CH:77]5[CH2:82][CH2:81][N:80]([CH3:83])[CH2:79][CH2:78]5)=[O:28])=[CH:24][C:23]=4[CH2:31][CH3:32])=[N:20][C:7]2=3)[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27375314-Amino-1-methylpiperidineHCID 580150654-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-ethylbenzoic acidHCID 178484289HCID 178484289, compound

Product 1

HCID 252535294-(9-Cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-ethyl-N-(1-methylpiperidin-4-yl)benzamideYield 47.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 0.040 g (0.0899 mmole) of 4-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-ethyl-benzoic acid (I-194) and 6 mL of dimethylformamide was added 0.0182 g (0.135 mmole) of 1-hydroxybenzotriazole, 0.0520 g (0.135 mmole) of 1-[bis(dimethylamino)methylene]-1H-benzotriazolium-3-oxide hexafluorophosphate and 0.060 g (0.463 mmole) of diisopropylethylamine. The mixture was stirred for 10 minutes, then 0.0153 g (0.134 mmole) of 4-amino-1-methylpiperidine was added. The reaction mixture was stirred for 2 hours and then concentrated under reduced pressure. The residue was dissolved in 80 mL of ethyl acetate and washed three times with 10 mL of 1M sodium hydroxide, twice with 15 mL of brine, dried, filtered and concentrated under reduced pressure. Purification by silica gel chromatography, eluting with dichloromethane-methanol (gradient, 95:5-80:20) gave 0.0231 g of 4-(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-ylamino)-3-ethyl-N-(1-methyl-piperidin-4-yl)-benzamide (I-195) as a white solid.

Workup

  1. stirringThe reaction mixture was stirred for 2 hours
  2. concentrationconcentrated under reduced pressure
  3. dissolutionThe residue was dissolved in 80 mL of ethyl acetate
  4. washwashed three times with 10 mL of 1M sodium hydroxide
  5. dry with materialtwice with 15 mL of brine, dried
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customPurification by silica gel chromatography
  9. washeluting with dichloromethane-methanol (gradient, 95:5-80:20)

Sources & evidence

ORD record
ord-b358c0dc1a1f4f4b8ffc1f47853ab62a
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Linked notes

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