Diisopropylethylamine → HCID 89544568, compound

HRID 630658Notes

Reaction equation

HRID 630658 reaction equation
[CH2:1]([O:4][C:5](=[O:41])[C@@H:6]([NH:33][C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:7][C:8]1[CH:32]=[CH:31][C:11]([O:12][C:13]([NH:15][C@H:16]([C:28](O)=[O:29])[CH2:17][CH2:18][CH2:19][NH:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])=[O:14])=[CH:10][CH:9]=1)[CH:2]=[CH2:3].[C:42]([S:61][CH2:62][C@@H:63]([C:65]([NH2:67])=[O:66])[NH2:64])([C:55]1[CH:60]=[CH:59][CH:58]=[CH:57][CH:56]=1)([C:49]1[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=1)[C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1.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:41])[C@@H:6]([NH:33][C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[CH2:7][C:8]1[CH:9]=[CH:10][C:11]([O:12][C:13]([NH:15][C@H:16]([C:28]([NH:64][C@H:63]([C:65]([NH2:67])=[O:66])[CH2:62][S:61][C:42]([C:49]2[CH:54]=[CH:53][CH:52]=[CH:51][CH:50]=2)([C:55]2[CH:56]=[CH:57][CH:58]=[CH:59][CH:60]=2)[C:43]2[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=2)=[O:29])[CH2:17][CH2:18][CH2:19][NH:20][C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])=[O:14])=[CH:31][CH:32]=1)[CH:2]=[CH2:3]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 44432703(2R)-2-amino-3-((triphenylmethyl)sulfanyl)propanamideHCID 89545074N2-[(4-{(2S)-3-(Allyloxy)-2-[(tert-butoxycarbonyl)amino]-3-oxopropyl}phenoxy)carbonyl]-N5-(tert-butoxycarbonyl)ornithine

Product 1

HCID 89544568HCID 89544568, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
60 °C

Procedure

1.50 g (2.59 mmol) of the compound from example 11A was dissolved in 60 ml dichloromethane. 0.940 g (2.59 mmol) S-Trityl-L-cysteinamide, 0.45 ml (2.60 mmol) N,N-diisopropylethylamine and 0.984 g (2.59 mmol) HATU were added. The reaction mixture was split into 3 portions. The portions were heated for 30 min in a sealed tube at 60° C. in a microwave synthesizer. From the combined reaction mixture the solvent was removed by rotary evaporation (approx. 40° C., approx. 200 mbar, approx. 30 min.). The raw product was dissolved in dichloromethane and chromatographed over approx. 400 ml silica gel. Solvents used were dichloromethane/ethyl acetate 2/1, dichloromethane/ethyl acetate 1/1. The product-containing fractions were combined and concentrated to dryness under reduced pressure. This gave 1.72 g (1.64 mmol, 63% of theory, 88% purity) of the desired product.

Workup

  1. customThe reaction mixture was split into 3 portions
  2. customFrom the combined reaction mixture the solvent
  3. customwas removed by rotary evaporation (approx. 40° C., approx. 200 mbar, approx. 30 min.)
  4. dissolutionThe raw product was dissolved in dichloromethane
  5. customchromatographed over approx. 400 ml silica gel
  6. concentrationconcentrated to dryness under reduced pressure

Sources & evidence

ORD record
ord-3dc10c7f0cfe4956a42554df825bc8a9
Source dataset
uspto-grants-2016_04
Patent number
US09315543B2

Reaction notes

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