Juq-139 -

Retrosynthetic route to JUQ‑139.

The identifier JUQ-139 refers to a specific entry in the Japanese adult video (JAV) industry, representing a production released under the Jump (JUQ) label. In the landscape of Japanese adult entertainment, these alphanumeric codes serve as the primary method for cataloging, searching, and identifying specific films and the performers featured within them. Production and Label Context JUQ-139

A convergent synthetic plan was employed (Scheme 1). The benzothiazole fragment (A) was prepared via a Hantzsch condensation, while the pyrazolo[1,5‑a]pyridine fragment (B) was constructed through a cyclocondensation of 2‑aminopyrazine with an appropriate β‑ketoester. The two fragments were linked via a coupling step. Full experimental details are provided in the Supporting Information (SI). Retrosynthetic route to JUQ‑139

A panel of 12 cancer cell lines (including MDA‑MB‑231, HCT‑116, A549, PC‑3) and a non‑transformed line (MCF‑10A) were cultured in RPMI‑1640 + 10 % FBS. Cells were seeded at 5 × 10³ cells well⁻¹ in 96‑well plates, treated with serial dilutions of JUQ‑139 (0.1 nM–10 µM) for 72 h, and viability assessed using the CellTiter‑Glo luminescent assay. Production and Label Context A convergent synthetic plan

To understand the significance of a code like JUQ-139, one must look at how the industry operates: