3-Hydrazino-6,7-dihydro-5h-benzo[6,7]cyclohepta[1,2-c]pyridazine → 1-(6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazin-3-yl)-N3-(5',5'-dimethyl-6,8,9,10-tetrahydro-5H-spiro[cycloocta[b]pyridine-7,2'-[1,3]dioxane]-3-yl)-1H-1,2,4-triazole-3,5-diamine

HRID 400417Notes

Reaction equation

HRID 400417 reaction equation
[C:1]([N:3]=[C:4]([O-])[NH:5][C:6]1[CH:7]=[C:8]2[CH2:24][CH2:23][C:15]3([O:20][CH2:19][C:18]([CH3:22])([CH3:21])[CH2:17][O:16]3)[CH2:14][CH2:13][CH2:12][C:9]2=[N:10][CH:11]=1)#[N:2].[N:26]1[C:31]2[C:32]3[CH:40]=[CH:39][CH:38]=[CH:37][C:33]=3[CH2:34][CH2:35][CH2:36][C:30]=2[CH:29]=[C:28]([NH:41][NH2:42])[N:27]=1>C(O)(C)C>[N:26]1[C:31]2[C:32]3[CH:40]=[CH:39][CH:38]=[CH:37][C:33]=3[CH2:34][CH2:35][CH2:36][C:30]=2[CH:29]=[C:28]([N:41]2[C:1]([NH2:2])=[N:3][C:4]([NH:5][C:6]3[CH:7]=[C:8]4[CH2:24][CH2:23][C:15]5([O:20][CH2:19][C:18]([CH3:21])([CH3:22])[CH2:17][O:16]5)[CH2:14][CH2:13][CH2:12][C:9]4=[N:10][CH:11]=3)=[N:42]2)[N:27]=1

Participants

4

Reactant 2

HCID 592955463-Hydrazino-6,7-dihydro-5h-benzo[6,7]cyclohepta[1,2-c]pyridazineHCID 178428806HCID 178428806, compound

Product 1

HCID 671040171-(6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazin-3-yl)-N3-(5',5'-dimethyl-6,8,9,10-tetrahydro-5H-spiro[cycloocta[b]pyridine-7,2'-[1,3]dioxane]-3-yl)-1H-1,2,4-triazole-3,5-diamine

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Conditions

Temperature
150 °C

Procedure

A mixture of N′-cyano-N-(5′,5′-dimethyl-6,8,9,10-tetrahydro-5H-spiro[cycloocta[b]pyridine-7,2′-[1,3]dioxane]-3-yl)carbamimidate (120 mg, 0.286 mmol) and (6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazin-3-yl)hydrazine (65 mg, 0.286 mmol) in isopropyl alcohol (2 mL) was heated in microwave at 150° C. for 20 min, filtered, and washed with isopropanol to give 1-(6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-c]pyridazin-3-yl)-N3-(5′,5′-dimethyl-6,8,9,10-tetrahydro-5H-spiro[cycloocta[b]pyridine-7,2′-[1,3]dioxane]-3-yl)-1H-1,2,4-triazole-3,5-diamine, compound #247 (55 mg, 35%); 1H NMR (DMSO-d6, 300 MHz) 9.22 (s, 1H), 8.72 (d, 1H), 7.94 (s, 1H), 7.88 (s, 2H), 7.13 (m, 1H), 7.62 (d, 1H), 7.44 (m, 2H), 7.36 (m, 1H), 3.42 (s, 4H), 2.82 (t, 2H), 2.71 (m, 2H), 2.25 (m, 2H), 1.97 (d, 2H), 1.69 (m, 2H), 1.52 (m, 2H), 1.02 (d, 4H), 0.88 (d, 6H) ppm; MS (ES) 553.28 (M+H).

Workup

  1. filtrationfiltered
  2. washwashed with isopropanol

Sources & evidence

ORD record
ord-8e8fdb4636b545559b967970b6eeb41c
Source dataset
uspto-grants-2014_06
Patent number
US08741898B2

Reaction notes

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