What is the intermediate enamine in the following reaction scheme? 
Definitions:
Tanner Phase
A scale of physical development in children, adolescents, and adults which defines physical measurements of development based on external primary and secondary sex characteristics.
Glandular Tissue
A type of tissue found in glands of the body, responsible for secreting hormones or other substances.
Areola
The pigmented area surrounding the nipple of the breast.
Premature Telarche
The early development of breast tissue in girls before the typical age of puberty onset, without other signs of puberty.
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