This paper describes the infrastructure of synthesizing quantum circuits via a quantum description language and for this purpose a new quantum circuit description language named QCDL is introduced which comprises instructions for quantum unitary operations and high-level structures which are synthesized into quantum logic level architecture. Next to introducing this language, we describe our synthesis approach to build up the quantum circuits out of a QCDL program. Although there are some languages like QCDL that work in the same way, but they lack all required instruction set, optimization step and/or support for distributed quantum circuits like the one in QCDL. More importantly, this paper describes a synthesis method for the specified language which is not completely included in other works in the field.