Prior art

Based on the provided full patent text for US12138276B2, there is no explicit section listing "patent citations" or "prior art references" in the format of specific patent numbers (e.g., US X,XXX,XXX or WO YYYY/ZZZZZA1).

The provided text does include:

• Prior art keywords: seq, alkyl group, halogenated, hydrogen atom, nucleic acid.
• Prior art date: 2020-09-01.

Without a list of specific patent or publication numbers that US12138276 cites as prior art, it is not possible to:

• Provide a full citation for each reference.
• Determine the publication/filing date for individual references.
• Provide a brief description of each reference.
• Identify which claim(s) of US12138276 it potentially anticipates under 35 U.S.C. § 102.

Therefore, I cannot fulfill the request to analyze specific prior art patent citations.