1228632-60-7

Upstream product

• 97-64-3 ethyl 2-hydroxypropionate 
• 2759-28-6 1-phenylmethylpiperazine 
• 687-47-8 (S)-Ethyl lactate 

Downstream Products

• 1215083-35-4 (S)-1-(4-Benzylpiperazin-1-yl)propan-2-ol 
• 1228632-59-4 (S)-1-{4-[2-(4-fluorophenyl)-8-methyl-3-(1H-pyrrolo[2,3-b]pyridin-4-yl)imidazo[1,2-b]pyridazin-6-yl]piperazin-1-yl}propan-2-ol 

Relevant academic research and scientific papers

A practical, protecting-group-free synthesis of a PI3K/mTOR inhibitor

We report a practical and protecting-group-free synthesis amenable to produce multikilogram amounts of PI3K/mTOR inhibitor GDC-0980. The route employed metalation/formylation and reductive amination followed by a metal catalyzed Suzuki-Miyaura cross-coupling. The metalation was performed via triarylmagnesiate intermediates allowing formylation under noncryogenic conditions. 2-Picoline·BH3 was employed to replace Na(OAc)3BH in the reductive amination and to eliminate the use of molecular sieves. A concise one-step synthesis was developed for the selective monoamidation of piperazine with (S)-lactate to produce the piperazine lactamide starting material. The boronic acid was produced from 2-amino-5-bromopyrimidine in a one-step and protecting-group-free approach. The final crystallization in 1-propanol and water afforded the API in 59% overall yield in four steps and >99% purity by HPLC.

PROCESS FOR MAKING THIENOPYRIMIDINE COMPOUNDS

Process methods for making the dual mTOR/PI3K inhibitor GDC-0980, named as (S)-1-(4-((2-(2-aminopyrimidin-5-yl)-7-methyl-4-morpholinothieno[3,2-d]pyrimidin-6-yl)methyl)piperazin-1-yl)-2-hydroxypropan-1-one, having the structure: and stereoisomers, geometric isomers, tautomers, and pharmaceutically acceptable salts thereof.

6-CYCLOAMINO-3-(1H-PYRROLO[2,3-b]PYRIDIN-4-YL)IMIDAZO[1,2-b]PYRIDAZINE DERIVATIVES, PREPARATION THEREOF AND THERAPEUTIC USE THEREOF

The invention relates to 6-cycloamino-3-(1H-pyrrolo[2,3-b]pyridin-4-yl)imidazo[1,2-b]pyridazine derivatives corresponding to the general formula (I) in which R2 represents an aryl group optionally substituted with one or more halogen atoms or C1-6-alkyl, C1-6-alkyloxy, C1-6-alkylthio, C1-6-fluoroalkyl, C1-6-fluoroalkyloxy and —CN groups or R2 represents a group chosen from C1-6-alkyl, C1-6-fluoroalkyl, C3-7-cycloalkyl or C3-7-cycloalkyl-C1-6-alkyl groups; A represents a C1-7-alkylene group; B represents a C1-7-alkylene group; L represents either a nitrogen atom optionally substituted with an Rc or Rd group, or a carbon atom substituted with an Re1 group and an Rd group or two Re2 groups; the carbon atoms of A and of B being optionally substituted with one or more Rf groups, which may be identical to or different from one another. Preparation process and therapeutic use.