Diisopropylethylamine → Allyl-O-({(3S)-4-[(6-{[(2R)-1-amino-1-oxo-3-(tritylsulfanyl)propan-2-yl]amino}-6-oxohexyl)-amino]-3-[(tert-butoxycarbonyl)amino]-4-oxobutyl}carbamoyl)-N-(tert-butoxycarbonyl)-L-tyrosinate

HRID 630667Notes

Reaction equation

HRID 630667 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].[NH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][C:47]([NH:49][C@@H:50]([CH2:54][S:55][C:56]([C:69]1[CH:74]=[CH:73][CH:72]=[CH:71][CH:70]=1)([C:63]1[CH:68]=[CH:67][CH:66]=[CH:65][CH:64]=1)[C:57]1[CH:62]=[CH:61][CH:60]=[CH:59][CH:58]=1)[C:51]([NH2:53])=[O:52])=[O:48].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:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][C:47]([NH:49][C@@H:50]([CH2:54][S:55][C:56]([C:69]2[CH:74]=[CH:73][CH:72]=[CH:71][CH:70]=2)([C:57]2[CH:58]=[CH:59][CH:60]=[CH:61][CH:62]=2)[C:63]2[CH:68]=[CH:67][CH:66]=[CH:65][CH:64]=2)[C:51]([NH2:53])=[O:52])=[O:48])=[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 895450906-Amino-N-[(2R)-1-amino-1-oxo-3-(tritylsulfanyl)propan-2-yl]hexanamide

Product 1

HCID 89554992Allyl-O-({(3S)-4-[(6-{[(2R)-1-amino-1-oxo-3-(tritylsulfanyl)propan-2-yl]amino}-6-oxohexyl)-amino]-3-[(tert-butoxycarbonyl)amino]-4-oxobutyl}carbamoyl)-N-(tert-butoxycarbonyl)-L-tyrosinate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
60 °C

Procedure

457 mg (0.81 mmol) of the compound from example 2A was dissolved in 15 ml dichloromethane. 384 mg (0.81 mmol) of the compound from example 21A, 141 μl (0.81 mmol) N,N-diisopropylethylamine and 307 mg (0.81 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 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 255 mg (0.22 mmol, 28% 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-d4dbac289dd94c5981b85fe1d49358bc
Source dataset
uspto-grants-2016_04
Patent number
US09315543B2

Reaction notes

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