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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → benzyl N-[(6S,8R)-8-azido-8-methyl-4-oxo-6-[[4-(N-phenylmethoxycarbonylcarbamimidoyl)phenyl]methylcarbamoyl]-6,7-dihydropyrrolo[1,2-a]pyrimidin-3-yl]-N-prop-2-enylcarbamate

HRID 10971
Notes
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Reaction equation

HRID 10971 reaction equation
[CH2:1]([N:4]([C:22]([O:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)=[O:23])[C:5]1[C:10](=[O:11])[N:9]2[C@H:12]([C:19](O)=[O:20])[CH2:13][C@:14]([N:16]=[N+:17]=[N-:18])([CH3:15])[C:8]2=[N:7][CH:6]=1)[CH:2]=[CH2:3].[CH2:32]([O:39][C:40](=[O:52])[NH:41][C:42]([C:44]1[CH:49]=[CH:48][C:47]([CH2:50][NH2:51])=[CH:46][CH:45]=1)=[NH:43])[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1.C1C=NC2N(O)N=NC=2C=1.C([O-])(O)=O.[Na+].CCN=C=NCCCN(C)C>C(Cl)Cl.CN(C=O)C.CCOC(C)=O>[CH2:25]([O:24][C:22](=[O:23])[N:4]([CH2:1][CH:2]=[CH2:3])[C:5]1[C:10](=[O:11])[N:9]2[C@H:12]([C:19](=[O:20])[NH:51][CH2:50][C:47]3[CH:48]=[CH:49][C:44]([C:42]([NH:41][C:40]([O:39][CH2:32][C:33]4[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=4)=[O:52])=[NH:43])=[CH:45][CH:46]=3)[CH2:13][C@:14]([N:16]=[N+:17]=[N-:18])([CH3:15])[C:8]2=[N:7][CH:6]=1)[C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 181649HOAtHCID 516892Sodium BicarbonateHCID 86590672(6S,8R)-3-(allyl-benzyloxycarbonyl-amino)-8-azido-8-methyl-4-oxo-4,6,7,8-tetrahydro-pyrrolo[1,2-a]pyrimidine-6-carboxylic AcidHCID 138391585N-Cbz-4-(aminomethyl)benzamidine

Product 1

HCID 145857216
benzyl N-[(6S,8R)-8-azido-8-methyl-4-oxo-6-[[4-(N-phenylmethoxycarbonylcarbamimidoyl)phenyl]methylcarbamoyl]-6,7-dihydropyrrolo[1,2-a]pyrimidin-3-yl]-N-prop-2-enylcarbamate
Yield 90%

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 22350042dichloromethane N,N-dimethylformamideSolvent

Procedure

To a solution of 18f (270 mg, 0.636 mmol) and [(4-Aminomethyl-phenyl)-imino-methyl]-carbamic acid benzyl ester (272 mg, 0.763 mmol) in 6 mL CH2Cl2/DMF (5:1) at 0° C., were added HOAT (95 mg, 0.700 mmol), NaHCO3 (187 mg, 2.23 mmol), and EDCI (171 mg, 0.890 mmol). The mixture was allowed to warm to rt and stir for 15 h. The mixture was diluted with EtOAc, washed with H2O, 1 N HCl, H2O, sat. NaHCO3, and brine. The mixture was dried (Na2SO4) and concentrated to afford 393 mg (90%) of intermediate 18 g.

Workup

  1. washwashed with H2O, 1 N HCl, H2O, sat. NaHCO3, and brine
  2. dry with materialThe mixture was dried (Na2SO4)
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-4d03171be84a4409a5d812f09daa32c8
Source dataset
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07094783B2

Reaction notes

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