Hydrazine hydrate (1:1) → 2-Benzyloxy-N4-(4,6-bis-((3R,5S)-3,5-bis-(tert-butoxycarbonylamino)-piperidin-1-yl)-[1,3,5]triazin-2-yl)-benzene-1,4-diamine

HRID 1354858Notes

Reaction equation

HRID 1354858 reaction equation
[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([NH:15][C:16]2[N:21]=[C:20]([N:22]3[CH2:27][C@@H:26]([NH:28][C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:25][C@@H:24]([NH:36][C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:23]3)[N:19]=[C:18]([N:44]3[CH2:49][C@@H:48]([NH:50][C:51]([O:53][C:54]([CH3:57])([CH3:56])[CH3:55])=[O:52])[CH2:47][C@@H:46]([NH:58][C:59]([O:61][C:62]([CH3:65])([CH3:64])[CH3:63])=[O:60])[CH2:45]3)[N:17]=2)[CH:12]=[CH:11][C:10]=1[NH:66]C(=O)C)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O.NN>CO.O1CCOCC1>[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([NH:15][C:16]2[N:21]=[C:20]([N:22]3[CH2:27][C@@H:26]([NH:28][C:29]([O:31][C:32]([CH3:33])([CH3:34])[CH3:35])=[O:30])[CH2:25][C@@H:24]([NH:36][C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:23]3)[N:19]=[C:18]([N:44]3[CH2:45][C@@H:46]([NH:58][C:59]([O:61][C:62]([CH3:65])([CH3:64])[CH3:63])=[O:60])[CH2:47][C@@H:48]([NH:50][C:51]([O:53][C:54]([CH3:57])([CH3:56])[CH3:55])=[O:52])[CH2:49]3)[N:17]=2)[CH:12]=[CH:11][C:10]=1[NH2:66])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 58865836N-[2-Benzyloxy-4-(4,6-bis-((3R,5S)-3,5-bis-(tert-Butoxycarbonylamino)-piperidin-1-yl)-[1,3,5]triazin-2-ylamino)-phenyl]-acetamide

Product 1

HCID 588651042-Benzyloxy-N4-(4,6-bis-((3R,5S)-3,5-bis-(tert-butoxycarbonylamino)-piperidin-1-yl)-[1,3,5]triazin-2-yl)-benzene-1,4-diamineYield 68%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 312751,4-DioxaneSolvent

Procedure

N-[2-Benzyloxy-4-(4,6-bis-((3R,5S)-3,5-bis-(tert-butoxycarbonylamino)-piperidin-1-yl)-[1,3,5]triazin-2-ylamino)-phenyl]-acetamide (401) (2.32 g, 2.4 mmol) was dissolved in an mixture of MeOH and dioxane (150 mL, 4:1). Hydrazine monohydrate (100 mL) was added and the mixture was heated to reflux for 10 days. LC-MS indicated complete de-protection at this point. Upon cooling, a white precipitate formed. The mixture was poured into ice water, forcing additional precipitate to form. The solid was collected by filtration under reduced pressure, rinsed with water (100 mL), and dried under high vacuum for 16 h to give the desired product (402) as a white powder (1.48 g, 1.62 mmol, 68% yield). LC-MS (ESI): (exact mass: 919.53) m/e=920.6 [M+1]+ (100%).

Workup

  1. temperaturethe mixture was heated
  2. temperatureto reflux for 10 days
  3. temperatureUpon cooling
  4. customa white precipitate formed
  5. customto form
  6. filtrationThe solid was collected by filtration under reduced pressure
  7. washrinsed with water (100 mL)
  8. customdried under high vacuum for 16 h

Sources & evidence

ORD record
ord-fdf1f86ba3444909ab99b065f86930a5
Source dataset
uspto-grants-2007_05
Patent number
US07223759B2

Reaction notes

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