Reaktion #996565

ord-0ab2e6280a8b4c66a73165fd7eb78a86

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Waschenwashed with 0.5N aqueous HCl
  2. 2
    TrocknenThe organic layer was dried (MgSO4)
  3. 3
    Filtrationfiltered
  4. 4
    Einengenconcentrated in vacuo
  5. 5
    SonstigeThe residue was purified by preparative HPLC (Method B)

Vorschrift

A mixture of the product of step c (130.7 mg), triethylamine (93 μl) and methanesulfonyl chloride 21 μl in dichloromethane (3 ml) was stirred for 17 h. The mixture was diluted with dichloromethane and washed with 0.5N aqueous HCl. The organic layer was dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by preparative HPLC (Method B). Yield: 57.1 mg. MS-ESI: [M+H]+=566.0/568.0; HPLC: Rt=12.49 min. (method 1). Diast. ratio: 4:1

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08017782B2uspto-grants-2011_09