利格列汀
Tier C — Watch / tradeLinagliptin · all drugs expiring in 2029 →
Targets:DPP4
Brand:欧唐宁、Ondero、Trazenta、Trajenta、Trayenta、Tradjenta
Indications (approved):二型糖尿病
Regional status
Synthetic routes & intermediates4 routes
Routes are ordered originator first, then optimised / process (non-patent) routes; each lists steps, overall yield and the intermediate table (code / CAS / name) — ready for supplier sourcing and RFQ. Rendered by this site from structured data; no third-party route graphics used.

| Code | CAS No. | Intermediate |
|---|---|---|
| LINA-001 | 93703-24-3Available | 8-bromo-3-methyl-3,7-dihydro-1H-purine-2,6-dione |
| LINA-002 | 3355-28-0Available | 1-bromobut-2-yne |
| LINA-003 | 666816-98-4Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione |
| LINA-004 | 109113-72-6Available | 2-(chloromethyl)-4-methylquinazoline |
| LINA-005 | 853029-57-9Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione |
| LINA-006 | 309956-78-3Available | (R)-tert-butyl piperidin-3-ylcarbamate |
| LINA-007 | 668273-75-4Available | tert-butyl (R)-(1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)carbamate |

| Code | CAS No. | Intermediate |
|---|---|---|
| LINA-001 | 93703-24-3Available | 8-bromo-3-methyl-3,7-dihydro-1H-purine-2,6-dione |
| LINA-002 | 3355-28-0Available | 1-bromobut-2-yne |
| LINA-003 | 666816-98-4Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione |
| LINA-004 | 109113-72-6Available | 2-(chloromethyl)-4-methylquinazoline |
| LINA-005 | 853029-57-9Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione |
| LINA-008 | 334618-23-4Available | (R)-piperidin-3-amine dihydrochloride |

| Code | CAS No. | Intermediate |
|---|---|---|
| LINA-003 | 666816-98-4Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione |
| LINA-004 | 109113-72-6Available | 2-(chloromethyl)-4-methylquinazoline |
| LINA-005 | 853029-57-9Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione |
| LINA-009 | 551-93-9Available | 1-(2-aminophenyl)ethan-1-one |
| LINA-010 | 107-14-2Available | 2-chloroacetonitrile |
| LINA-011 | 886588-62-1Available | (R)-2-(piperidin-3-yl)isoindoline-1,3-dione (2S,3S)-2,3-dihydroxysuccinate |
| LINA-012 | 886588-63-2Available | (R)-7-(but-2-yn-1-yl)-8-(3-(1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione |
| LINA-013 | 462-08-8Available | pyridin-3-amine |
| LINA-014 | 54012-73-6Available | piperidin-3-amine |
| LINA-015 | 85-44-9Available | isobenzofuran-1,3-dione |
| LINA-016 | 62813-09-6Available | 2-(piperidin-3-yl)isoindoline-1,3-dione |
| LINA-017 | 147-71-7Available | (2S,3S)-2,3-dihydroxysuccinic acid |

| Code | CAS No. | Intermediate |
|---|---|---|
| LINA-005 | 853029-57-9Available | 8-bromo-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione |
| LINA-018 | 83602-37-3Available | ethyl (R)-piperidine-3-carboxylate (2R,3R)-2,3-dihydroxysuccinate |
| LINA-019 | 1805773-12-9Available | ethyl (R)-1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidine-3-carboxylate |
| LINA-020 | - | (R)-1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidine-3-carboxylic acid |
| LINA-021(OPr) | 1770824-68-4Available | propyl (R)-(1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)carbamate |
| LINA-021(C7H5N2S) | 1383917-89-2Available | (R)-N-(1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)octa-2,4,6-triynamide compound with 1-(l1-sulfanyl)-2l2-diazene and dihydrogen (1:1:1) |
| LINA-021(S(CH2)11CH3) | - | S-dodecyl (R)-(1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)carbamothioate |
Frequently asked questions
What are the approved indications of Linagliptin?
Approved indications include: 二型糖尿病.
When does the Linagliptin patent expire?
Based on public sources, the Linagliptin patent expires in 2029.
How many synthesis routes are recorded for Linagliptin?
4 synthesis routes are recorded; the shortest is 3 steps with / total yield. Intermediates in each route carry codes and CAS numbers.
Where can I buy Linagliptin intermediates?
21 intermediate CAS of Linagliptin are available through the Unibest supply network — see the route tables on this page and request a quote per CAS.
How do I get a quote for Linagliptin intermediates?
Open the CAS profile of the target intermediate from this page, or submit an RFQ directly — the CAS enters the matching flow automatically and the supply network responds with quotes.
Source: cross-verified data (structured fields only) · 2026-09-24