Sodium borohydride → (7,9-Dihydroxy-5-(hydroxymethyl)-1,1a,2,8,9,9a-hexahydro-3,9-epoxyazireno(2,3-c)(1)benzazocin-8-yl)methyl hydrogen carbonimidate

HRID 236586Notes

Reaction equation

HRID 236586 reaction equation
[C:1](=[O:23])([O:3][CH2:4][CH:5]1[C:17]2([OH:19])[O:18][N:12]([CH2:13][CH:14]3[CH:16]2[NH:15]3)[C:11]2[C:6]1=[C:7]([OH:22])[CH:8]=[C:9]([CH:20]=[O:21])[CH:10]=2)[NH2:2].[BH4-].[Na+]>CO>[C:1](=[O:23])([O:3][CH2:4][CH:5]1[C:17]2([OH:19])[O:18][N:12]([CH2:13][CH:14]3[CH:16]2[NH:15]3)[C:11]2[C:6]1=[C:7]([OH:22])[CH:8]=[C:9]([CH2:20][OH:21])[CH:10]=2)[NH2:2]

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 10448726(4-Formyl-6,9-dihydroxy-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12]tetradeca-2(7),3,5-trien-8-yl)methyl carbamate

Product 1

HCID 124136(7,9-Dihydroxy-5-(hydroxymethyl)-1,1a,2,8,9,9a-hexahydro-3,9-epoxyazireno(2,3-c)(1)benzazocin-8-yl)methyl hydrogen carbonimidate

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 4-formyl-6,9-dihydroxy-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12 ]tetradeca-2,4,6-trien-8-ylmethyl carbamate (30 mg) in methanol (3 ml) was added sodium borohydride (40 mg), and the mixture was stirred at room temperature for 1 hour. After evaporation of the solvent, the residue was subjected to column chromatography on non-ionic adsorption resin "Diaion HP-20" (Trade Mark, maker Mitsubishi Chemical Industries Ltd.). Elution was carried out with 50% methanol, and fractions containing the desired compound were collected. The solvent was evaporated off to give 6,9-dihydroxy-4-hydroxymethyl-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12 ]tetradeca-2,4,6-trien-8-ylmethyl carbamate, which was dissolved in pyridine (1 ml). To this solution was added acetic anhydride (0.5 ml), and the resultant solution was allowed to stand at room temperature overnight. Removal of the solvent by using high vacuum pump gave an oil, which was subjected to preparative thin layer chromatography. Development was carried out with a mixture of methanol and chloroform (1:9, v/v) to afford 4-acetoxymethyl-11-acetyl-8-carbamoyloxymethyl-14-oxa-1,11-diazatetracyclo[7.4.1.02,7.010,12 ]tetradeca-2,4,6-trien-6,9-diyl diacetate (12 mg).

Workup

  1. customAfter evaporation of the solvent
  2. washElution
  3. additioncontaining the desired compound
  4. customwere collected
  5. customThe solvent was evaporated off

Sources & evidence

ORD record
ord-03e202ae41bf4179b3843aa292dbc653
Source dataset
uspto-grants-1987_02
Patent number
US04645765

Reaction notes

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