Diisopropylethylamine → Allyl-O-({(3S)-4-{[(2R)-1-anilino-1-oxo-3-(tritylsulfanyl)propan-2-yl]amino}-3-[(tert-butoxycarbonyl)amino]-4-oxobutyl}carbamoyl)-N-(tert-butoxycarbonyl)-L-tyrosinate

HRID 630671Notes

Reaction equation

HRID 630671 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].[C:41]1([NH:47][C:48](=[O:72])[C@H:49]([CH2:51][S:52][C:53]([C:66]2[CH:71]=[CH:70][CH:69]=[CH:68][CH:67]=2)([C:60]2[CH:65]=[CH:64][CH:63]=[CH:62][CH:61]=2)[C:54]2[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=2)[NH2:50])[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=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: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]([NH:50][C@@H:49]([CH2:51][S:52][C:53]([C:66]2[CH:71]=[CH:70][CH:69]=[CH:68][CH:67]=2)([C:60]2[CH:61]=[CH:62][CH:63]=[CH:64][CH:65]=2)[C:54]2[CH:59]=[CH:58][CH:57]=[CH:56][CH:55]=2)[C:48]([NH:47][C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)=[O:72])=[O:20])=[CH:30][CH:31]=1)[NH:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[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 89544878(2S)-4-{[(4-{(2S)-3-(Allyloxy)-2-[(tert-butoxycarbonyl)amino]-3-oxopropyl}phenoxy)carbonyl]-amino}-2-[(tert-butoxycarbonyl)amino]butanoic acidHCID 89544907N-Phenyl-S-trityl-L-cysteinamide

Product 1

HCID 89555021Allyl-O-({(3S)-4-{[(2R)-1-anilino-1-oxo-3-(tritylsulfanyl)propan-2-yl]amino}-3-[(tert-butoxycarbonyl)amino]-4-oxobutyl}carbamoyl)-N-(tert-butoxycarbonyl)-L-tyrosinate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

456 mg (0.68 mmol) of the compound from example 2A was dissolved in 8 ml dichloromethane. 300 mg (0.68 mmol) N-Phenyl-S-trityl-L-cysteinamide, 0.12 ml (0.68 mmol) N,N-diisopropylethylamine and 260 mg (0.68 mmol) HATU were added. The reaction mixture was stirred at room temperature for 4 h. From the reaction mixture the solvent was removed under reduced pressure. The raw product was purified in two portions 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 361 mg (0.37 mmol, 53% 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 in two portions 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-dd3e5b8391a44370b980e53ef52653ba
Source dataset
uspto-grants-2016_04
Patent number
US09315543B2

Reaction notes

Loading…