The development of targeted cancer therapies has revolutionized patient care, and Bortezomib stands as a prime example of a successful proteasome inhibitor. For pharmaceutical manufacturers and R&D teams involved in the synthesis of Bortezomib, understanding the critical role of its intermediates is paramount. Among these, (1S,2S,3R,5S)-(+)-2,3-Pinanediol (CAS: 18680-27-8) is a key chiral building block whose quality and availability directly impact the efficiency and success of the overall synthesis.
What is Bortezomib?
Bortezomib, marketed under brand names like Velcade, is a cancer medication used to treat multiple myeloma and mantle cell lymphoma. It functions by inhibiting proteasomes, cellular complexes responsible for protein degradation, thereby disrupting cell cycle progression and inducing apoptosis in cancer cells. The complex molecular structure of Bortezomib necessitates precise stereochemical control during its synthesis, making chiral intermediates indispensable.
The Importance of (1S,2S,3R,5S)-(+)-2,3-Pinanediol
(1S,2S,3R,5S)-(+)-2,3-Pinanediol is a bicyclic monoterpene diol derived from alpha-pinene. Its specific stereochemical configuration makes it an ideal chiral auxiliary or building block for constructing the intricate stereocenters present in Bortezomib. The high purity (typically ≥99.0%) of this intermediate is critical to ensure that the final active pharmaceutical ingredient (API) possesses the correct three-dimensional structure, which is fundamental for its biological activity and therapeutic efficacy. Impurities or incorrect stereoisomers can lead to reduced efficacy or, worse, harmful side effects.
Reliable Sourcing for Pharmaceutical Manufacturing
For pharmaceutical companies, sourcing (1S,2S,3R,5S)-(+)-2,3-Pinanediol requires a dependable partner who can guarantee consistent quality and a secure supply chain. When you decide to buy this intermediate, it is essential to partner with a manufacturer that adheres to strict quality control standards. Look for suppliers who can provide:
As a specialized chemical supplier with a strong presence in China, we understand the critical requirements for pharmaceutical intermediates. We offer high-purity (1S,2S,3R,5S)-(+)-2,3-Pinanediol, ensuring it meets the stringent specifications needed for Bortezomib synthesis. We are committed to being a reliable source for your API intermediate needs, supporting your mission to produce life-saving medications.
The role of (1S,2S,3R,5S)-(+)-2,3-Pinanediol in Bortezomib synthesis underscores the importance of high-quality chiral intermediates in modern pharmaceutical manufacturing. By partnering with knowledgeable and quality-focused suppliers, companies can ensure the successful and efficient production of critical therapies.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.