1,4-dihydro-2,4,6-trimetyl-3,5-pyridindikarboxylsyradietylester.

I'm sorry for any inconvenience, but I was unable to find a precise medical definition for "Dikarbetoxidihydrokollidin." It is possible that there may be a mistake in the spelling or it could be a term that is not commonly used in the medical field.

If you meant "Dicarbouxydihydrocollidine," I still couldn't find any relevant medical definition for this compound. However, dicarbouxydihydrocollidine appears to be a chemical compound with the formula (CH3)2Si(OH)COOH·2H2O. It is not a term commonly used in medical terminology.

If you have further information or clarification about the term, I'd be happy to help you look for more details!