Hydrochloric Acid → HCID 131713676, compound

HRID 648824Notes

Reaction equation

HRID 648824 reaction equation
[C:1]([NH:9][CH:10]([CH2:37][CH2:38][CH2:39][CH2:40][NH:41]C(OCC1C=CC=CC=1)=O)[C:11](=[O:36])[CH2:12][N:13](C(OCC1C=CC=CC=1)=O)[C@H:14]([C:16]([N:18]1[CH2:25][CH2:24][CH2:23][C@H:19]1[C:20]([OH:22])=[O:21])=[O:17])[CH3:15])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[ClH:52].Cl.NCCCCC(NC(=O)C1C=CC=CC=1)C(=O)CN[C@H](C(N1CCC[C@H]1C(O)=O)=O)C.CO>C(O)C.[Pd].C(O)CCC.C(O)(=O)C.O>[ClH:52].[ClH:52].[NH2:41][CH2:40][CH2:39][CH2:38][CH2:37][CH:10]([NH:9][C:1](=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[C:11](=[O:36])[CH2:12][NH:13][C@H:14]([C:16]([N:18]1[CH2:25][CH2:24][CH2:23][C@H:19]1[C:20]([OH:22])=[O:21])=[O:17])[CH3:15]

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 53737249HCID 53737249, compoundHCID 131713678HCID 131713678, compound

Product 1

HCID 131713676HCID 131713676, compound

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 702EthanolSolventHCID 22056973Butanol acetic acid waterSolvent

Procedure

1-[N-[3-(Benzoylamino)-7-[[(phenylmethoxy)carbonyl]amino]-2-oxoheptyl]-N-[(phenylmethoxy)carbonyl]-L-alanyl]-L-proline, phenylemethyl ester (1.3 g., 1.6 mmole) is dissolved in ethanol (75 ml.) and aqueous hydrochloric acid (1N, 5 ml.). Palladium on carbon catalyst (10%, 450 mg.) is added and the mixture is hydrogenated at atmospheric pressure overnight. The catalyst is filtered off and the solution is evaporated in vacuo. The residue is dissolved in water and lyophilized. The lyophilate is triturated with ether to give 0.6 g. of 1-[N-[7-amino-3-(benzoylamino)-2-oxoheptyl]-L-alanyl]-L-proline, hydrochloride; m.p. 80°-155°; [α]D22 =-50° (c=1.1, methanol). Rf 0.09 (silica gel, n-butanol/acetic acid/water, 4:1:1).

Workup

  1. customis hydrogenated at atmospheric pressure overnight
  2. filtrationThe catalyst is filtered off
  3. customthe solution is evaporated in vacuo
  4. dissolutionThe residue is dissolved in water
  5. customThe lyophilate is triturated with ether
  6. customto give 0.6 g

Sources & evidence

ORD record
ord-96660e15163c4d7794678b597d50b001
Source dataset
uspto-grants-1988_04
Patent number
US04736066

Reaction notes

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