5-Hydroxymethylene-1-methyl-1,3a,5,6,7,7a-hexahydro-indazol-4-one → 3-(7-Methyl-5,7-dihydro-6H-pyrazolo[3,4-h]quinazolin-2-ylamino)-phenol

Participants

Reaction Conditions

Reaction Steps

To the DMF solution of crude 5-hydroxymethylene-1-methyl-1,3a,5,6,7,7a-hexahydro-indazol-4-one was added 10 eq of N-(3-hydroxy-phenyl)-guanidine, the reaction mixture was stirred at 100° C. for overnight, LC/MS indicated one of the two peaks is the desired product. The DMF solution of reaction mixture was directly injected into prep HPLC, only a portion of the product mixture was purified.

Provenance & Evidence