1,2-Ethanediamine, N1,N2-bis(phenylmethyl)-, acetate (1:2) → 2-Methyl-2,3-methylene-6-[2-phenyl-2-(2-chlorophenoxy)acetamido]penam-3-carboxylic acid

HRID 1287330

Reaction equation

HRID 1287330 reaction equation
[CH3:1][C:2]12[CH2:15][C:6]1([C:7]([O:9]CC(Cl)(Cl)Cl)=[O:8])[N:5]1[C:16](=[O:36])[CH:17]([NH:18][C:19](=[O:35])[CH:20]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[O:21][C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[Cl:28])[C@H:4]1[S:3]2.C(O)(=O)C.C(O)(=O)C.[CH2:45]([NH:52][CH2:53][CH2:54][NH:55][CH2:56][C:57]1[CH:62]=[CH:61][CH:60]=[CH:59][CH:58]=1)[C:46]1[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=1>CN(C)C=O.C(O)(=O)C.CO.O.[Zn]>[CH2:45]([NH:52][CH2:53][CH2:54][NH:55][CH2:56][C:57]1[CH:62]=[CH:61][CH:60]=[CH:59][CH:58]=1)[C:46]1[CH:47]=[CH:48][CH:49]=[CH:50][CH:51]=1.[CH3:1][C:2]12[CH2:15][C:6]1([C:7]([OH:9])=[O:8])[N:5]1[C:16](=[O:36])[CH:17]([NH:18][C:19](=[O:35])[CH:20]([C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[O:21][C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[Cl:28])[C@H:4]1[S:3]2

Participants

9

Reactant 2

HCID 312281,2-Ethanediamine, N1,N2-bis(phenylmethyl)-, acetate (1:2)HCID 681319712,2,2-Trichloroethyl 2-methyl-2,3-methylene-6-[2-phenyl-2-(2-chlorophenoxy)acetamido]penam-3-carboxylate

Product 2

HCID 8793BenzathineHCID 155824092-Methyl-2,3-methylene-6-[2-phenyl-2-(2-chlorophenoxy)acetamido]penam-3-carboxylic acidYield 216%

Reagents, catalysts & solvents 5

HCID 23994ZincCatalystHCID 176Acetic AcidSolventHCID 887MethanolSolvent2×HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 2,2,2-trichloroethyl 2-methyl-2,3-methylene-6-[2-phenyl-2-(2-chlorophenoxy)acetamido]penam-3-carboxylate (1.18 g.) in a mixture of dimethylformamide (5 ml.) and acetic acid (1.5 ml.) was added zinc powder (1.2 g.) under ice-cooling, and the mixture was stirred for 1.5 hours. After the reaction, the residue (0.65 g.) obtained by post-treating the reaction mixture in the similar manner as described in Example 1 was dissolved in methanol (2 ml.) and a solution of N,N'-dibenzylethylenediamine diacetate (0.20 g.) in water (10 ml.) was added to the solution. Crystals obtained in this manner were dissolved in methanol and subjected to reprecipitation with water to give N,N'-dibenzylethylenediamine salt of 2-methyl-2,3-methylene-6-[2-phenyl-2-(2-chlorophenoxy)acetamido]penam-3-carboxylic acid (0.55 g.), mp 107° to 110°C (dec.)

Workup

  1. temperaturecooling
  2. customAfter the reaction
  3. customthe residue (0.65 g.) obtained
  4. additionby post-treating the reaction mixture in the similar manner
  5. customCrystals obtained in this manner
  6. customsubjected to reprecipitation with water

Sources & evidence

ORD record
ord-db632ec0447d41979d0fc0c130e957c1
Source dataset
uspto-grants-1976_10
Patent number
US03984397

Linked notes

Loading…