Pyrrolidine → HCID 22418784, compound

HRID 1720783Notes

Reaction equation

HRID 1720783 reaction equation
[CH2:1]([N:3]([CH2:17][CH3:18])[C:4]1[N:9]=[C:8]([N:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)[CH:7]=[C:6](Cl)[N:5]=1)[CH3:2].[NH:19]1[CH2:23][CH2:22][CH2:21][CH2:20]1>>[CH2:1]([N:3]([CH2:17][CH3:18])[C:4]1[N:9]=[C:8]([N:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)[CH:7]=[C:6]([N:19]2[CH2:23][CH2:22][CH2:21][CH2:20]2)[N:5]=1)[CH3:2]

Participants

3

Reactant 2

HCID 31268PyrrolidineHCID 22418728HCID 22418728, compound

Product 1

HCID 22418784HCID 22418784, compound

Procedure

A solution of 2-diethylamino-4-piperazino-6-chloro-pyrimidine (4.10 g) in pyrrolidine (4.10 g) is heated for 12 hr at 100°, then concentrated. The concentrate is partitioned between aqueous sodium bicarbonate and methylene chloride. The phases are separated, the organic phase is dried and concentrated to give 2-diethylamino-4-piperazino-6-pyrrolidino-pyrimidine. A solution of this amine (4.01 g), 21-bromo-17α-hydroxypregna-4,9(11)-diene-3,20-dione (5.41 g), and potassium carbonate (1.75 g) are stirred in acetonitrile (200 ml) for 19 hr. The reaction mixture, is partitioned between methylene chloride and aqueous sodium bicarbonate. The phases are separated and the, organic phase is dried over sodium sulfate and concentrated. The concentrate is chromatographed on silica gel (methylene chloride to 4% methanol/methylene chloride) to give the free base corresponding to the title compound. An ethyl acetate solution of this compound is converted to the hydrochloride salt with ether/hydrochloric acid to give the title compound.

Workup

  1. concentrationconcentrated
  2. customThe concentrate is partitioned between aqueous sodium bicarbonate and methylene chloride
  3. customThe phases are separated
  4. customthe organic phase is dried
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-0c7be724edf0483fb0a55a581426a87c
Source dataset
uspto-grants-1996_04
Patent number
US05506354

Reaction notes

Loading…