Diisopropylethylamine → Allyl-O-({(14S)-1-azido-14-[(tert-butoxycarbonyl)amino]-13-oxo-3,6,9-trioxa-12-azahexadecan-16-yl}carbamoyl)-N-(tert-butoxycarbonyl)-L-tyrosinate

HRID 630668Notes

Reaction equation

HRID 630668 reaction equation
[CH2:1]([O:4][C:5](=[O:40])[C@@H:6]([NH:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[CH2:7][C:8]1[CH:31]=[CH:30][C:11]([O:12][C:13]([NH:15][CH2:16][CH2:17][C@H:18]([NH:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[C:19](O)=[O:20])=[O:14])=[CH:10][CH:9]=1)[CH:2]=[CH2:3].[N:41]([CH2:44][CH2:45][O:46][CH2:47][CH2:48][O:49][CH2:50][CH2:51][O:52][CH2:53][CH2:54][NH2:55])=[N+:42]=[N-:43].C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>ClCCl>[CH2:1]([O:4][C:5](=[O:40])[C@H:6]([CH2:7][C:8]1[CH:9]=[CH:10][C:11]([O:12][C:13](=[O:14])[NH:15][CH2:16][CH2:17][C@H:18]([NH:22][C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[C:19](=[O:20])[NH:55][CH2:54][CH2:53][O:52][CH2:51][CH2:50][O:49][CH2:48][CH2:47][O:46][CH2:45][CH2:44][N:41]=[N+:42]=[N-:43])=[CH:30][CH:31]=1)[NH:32][C:33]([O:35][C:36]([CH3:39])([CH3:37])[CH3:38])=[O:34])[CH:2]=[CH2:3]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 27352801-Amino-11-azido-3,6,9-trioxaundecaneHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 89544878(2S)-4-{[(4-{(2S)-3-(Allyloxy)-2-[(tert-butoxycarbonyl)amino]-3-oxopropyl}phenoxy)carbonyl]-amino}-2-[(tert-butoxycarbonyl)amino]butanoic acid

Product 1

HCID 89555031Allyl-O-({(14S)-1-azido-14-[(tert-butoxycarbonyl)amino]-13-oxo-3,6,9-trioxa-12-azahexadecan-16-yl}carbamoyl)-N-(tert-butoxycarbonyl)-L-tyrosinate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
60 °C

Procedure

518 mg (0.92 mmol) of the compound from example 2A was dissolved in 15 ml dichloromethane. 200 mg (0.92 mmol) 2-{2-[2-(2-Azidoethoxy)ethoxy]ethoxy}ethanamine, 160 μl (0.92 mmol) N,N-diisopropylethylamine and 348 mg (0.92 mmol) HATU were added. The reaction mixture was heated for 30 min in a sealed tube at 60° C. in a microwave synthesizer. From the reaction mixture the solvent was removed under reduced pressure. The raw product was purified by preparative RP-HPLC on a C18 column with a water methanol gradient from 9/1 to 1/9. The product-containing fractions were combined and concentrated to dryness under reduced pressure. This gave 276 mg (0.34 mmol, 37% of theory) of the desired product.

Workup

  1. customFrom the reaction mixture the solvent was removed under reduced pressure
  2. customThe raw product was purified by preparative RP-HPLC on a C18 column with a water methanol gradient from 9/1 to 1/9
  3. concentrationconcentrated to dryness under reduced pressure

Sources & evidence

ORD record
ord-ebec0d5203f74f1eb3e0b48f20a1b6c8
Source dataset
uspto-grants-2016_04
Patent number
US09315543B2

Reaction notes

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