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RMC-7977

CAS No.
2765082-12-8
Chemical Name:
RMC-7977
Synonyms
RMC-7977;(3R,4r,5S)-N-((63S,4S,Z)-12-(5-(4-cyclopropylpiperazin-1-yl)-2-((S)-1-methoxyethyl)pyridin-3-yl)-11-ethyl-10,10-dimethyl-5,7-dioxo-61,62,63,64,65,66-hexahydro-11H-8-oxa-2(4,2)-thiazola-1(5,3)-indola-6(1,3)-pyridazinacycloundecaphane-4-yl)tetrahydro-2H-pyran-4-carboxamide;(1α,5α,6α)-N-[(2R,14S,18S)-2-[5-(4-Cyclopropyl-1-piperazinyl)-2-[(1S)-1-methoxyethyl]-3-pyridinyl]-1-ethyl-18,19,20,21-tetrahydro-25,25-dimethyl-15,22-dioxo-17H-5,3-([4,2]-endo-thiazolopropano[1,3]-endo-pyridazinomethanoxypropano)-1H-indol-14-yl]-3-oxabicyclo[3.1.0]hexane-6-carboxamide;3-Oxabicyclo[3.1.0]hexane-6-carboxamide, N-[(2R,14S,18S)-2-[5-(4-cyclopropyl-1-piperazinyl)-2-[(1S)-1-methoxyethyl]-3-pyridinyl]-1-ethyl-18,19,20,21-tetrahydro-25,25-dimethyl-15,22-dioxo-17H-5,3-([4,2]-endo-thiazolopropano[1,3]-endo-pyridazinomethanoxypropano)-1H-indol-14-yl]-, (1α,5α,6α)-
CBNumber:
CB113770698
Molecular Formula:
C47H60N8O6S
Molecular Weight:
865.1
MDL Number:
MOL File:
2765082-12-8.mol
MSDS File:
SDS
Last updated:2026-05-27 23:07:53
Product description Number Pack Size Price
RMC-7977 ≥95% 42185 1mg $61
RMC-7977 ≥95% 42185 5mg $273
RMC-7977 ≥95% 42185 10mg $484
RMC-7977 ≥95% 42185 25mg $832
RMC-7977 BA5764 1mg $270

RMC-7977 Properties

Density 1.46±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)
solubility DMSO: Soluble: =10 mg/ml
Ethanol: Soluble: =10 mg/ml
pka 13.85±0.40(Predicted)
form Solid
color White to light yellow
InChIKey NBLZKEHVVJSAAY-UHFFFAOYSA-N
SMILES C(N1C2=CC=C3C4=CSC(CC(C(N5CCCC(N5)C(OCC(CC(C2=C3)=C1C1C=C(N2CCN(C3CC3)CC2)C=NC=1C(C)OC)(C)C)=O)=O)NC(C1C2COCC12)=O)=N4)C

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319
Precautionary statements  P501-P270-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330

RMC-7977 price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Cayman Chemical 42185 RMC-7977 ≥95% 2765082-12-8 1mg $61 2026-04-30 Buy
Cayman Chemical 42185 RMC-7977 ≥95% 2765082-12-8 5mg $273 2026-04-30 Buy
Cayman Chemical 42185 RMC-7977 ≥95% 2765082-12-8 10mg $484 2026-04-30 Buy
Cayman Chemical 42185 RMC-7977 ≥95% 2765082-12-8 25mg $832 2026-04-30 Buy
ApexBio Technology BA5764 RMC-7977 2765082-12-8 1mg $270 2026-05-06 Buy
Product number Packaging Price Buy
42185 1mg $61 Buy
42185 5mg $273 Buy
42185 10mg $484 Buy
42185 25mg $832 Buy
BA5764 1mg $270 Buy

RMC-7977 Chemical Properties,Uses,Production

Uses

RMC-7977 is an orally active triple-complex RAS inhibitor that can simultaneously bind to cyclophilin A (CYPA) (Kd = 195 nM) and KRAS (G12V) (Kd = 292 μM). It exhibits broad-spectrum inhibitory activity against KRAS, NRAS, and HRAS proteins and their various wild-type and mutant variants. RMC-7977 induces apoptosis by inhibiting the phosphorylation of ERK, CRAF, and RSK, as well as increasing PARP cleavage. This leads to tumor regression, reduces resistance in KRASG12C cancer models, and demonstrates good tolerability across various RAS cancer models[1][2][3].

in vivo

Compared to using RMC-4550 (HY-116009, a SHP2 inhibitor) and Coibmetinib (a MEK inhibitor) to inhibit RAS-MAPK downstream signaling pathway activity, directly targeting active RAS with RMC-7977 (10 mg/kg, p.o., once daily for 5 consecutive days per week followed by 2 days of cessation, for a total of 28 days) demonstrates superior anti-tumor activity in xenograft KRASG12X mouse models[1]. RMC-7977 (10 mg/kg, p.o., once daily for 5 days per week followed by 2 days off, for a total of 90 days) demonstrates significant anti-tumor activity in PDAC, CRC, and NSCLC models with KRASG12X mutations and in xenograft mice models, induces durable tumor regression, and shows good tolerability in the mouse models[1]. RAS inhibition mediated by RMC-7977 (10 mg/kg, oral administration, once daily for 28 days) does not impair immune cell function in immunocompetent mice[1]. RMC-7977 (10 mg/kg, p.o., once daily for 28 days) can inhibit the adaptive resistance to KRAS(G12C) inhibitors in a PDX mice model with KRAS(G12C) mutations (derived from NSCLC tumor cells that relapsed after Sotorasib (HY-114277) treatment)[1]. RMC-7977 (10-50 mg/kg, p.o., single dose) effectively inhibits RAS-MAPK signaling in human pancreatic ductal adenocarcinoma (PDAC) xenograft mouse models (Capan-1 (KRASG12V)) and maintains high concentrations in tumor tissue[3].

Animal Model:Subcutaneously implanted NCI-H441 CDX model of non-small cell lung cancer xenograft tumor (NSCLC) in BALB/c mice[1]
Dosage:10mg/kg
Administration:Oral gavage (p.o.), single dose or once daily for 5 days, followed by a 2-day break, totally for 28 days
Result: Had an EC50 value of 130 nM for DUSP6 in the NCI-H441 non-small cell lung cancer (NSCLC) model. Was well tolerated and resulted in 83% mean tumour regression following 28 days of treatment in the NCI-H441 model. Was sufficient to maximally suppress tumour DUSP6 levels (91%) at 8h at a single oral dose. Was observed to have prolonged exposure in tumors, with overall exposure in subcutaneous tumors increasing approximately threefold compared to blood.
Animal Model:PDAC, CRC, NSCLC CDX and patient-derived xenograft (PDX) mice models (bearing KRASG12X mutations)[1]
Dosage:10mg/kg
Administration:Oral gavage (p.o.), once daily for 90 days
Result:Caused tumor regression in 9 out of 15 (60%) RAS-addicted cancer mouse models after 4 to 6 weeks of administration. Had minimal effects on body weight across all models. Exhibited anti-tumor activity and maintained cytostatic responses after extending the administration to 90 days.
Animal Model:Human Clinical-Derived Xenograft mice model of PDAC (Capan-1 (KRASG12V))[3]
Dosage:10, 25, 50 mg/kg
Administration:Oral gavage, single dose
Result:Was exposed in Capan-1 xenograft tumors for three times longer than in the blood. Inhibited DUSP6 levels within 24-48 hours, with an EC50 of 142 nM.

IC 50

c-Raf; KRAS(G12C); H-Ras; NRAS rG4

References

[1] Singh M, et al. Concurrent inhibition of oncogenic and wild-type RAS-GTP for cancer therapy. Research Square; 2023. DOI:10.1038/s41586-024-07205-6

[2] Popescu B, et al. RAS MULTI (ON) inhibitor RMC-7977 targets oncogenic RAS mutations and overcomes RAS/MAPK-mediated resistance to FLT3 inhibitors in AML models[J]. Blood, 2023, 142: 2793.

[3] Wasko UN, et al. Tumour-selective activity of RAS-GTP inhibition in pancreatic cancer. Nature. 2024 May;629(8013):927-936. DOI:10.1038/s41586-024-07379-z

RMC-7977 Preparation Products And Raw materials

Raw materials

Preparation Products

RMC-7977 Suppliers

Global( 51)Suppliers
Supplier Tel Email Country ProdList Advantage
Zibo Hangyu Biotechnology Development Co., Ltd
+86-0533-2185556 +8615965530500 nickzhang@hangyubiotech.com China 9945 58
Shandong Hanjiang Chemical Co., Ltd
+86-0533-2066820 +8618369939125 hanson@sdhanjiang.com China 1000 58
LIDE PHARMACEUTICALS LIMITED
+86-86-2558409506 +8618913920737 louis@lidepharma.com China 300 58
NANJING YINGWEN BIOTECHNOLOGY CO LTD
+8613382787392 sales@aeechem.com China 10002 58
ShangHai ChuanQian Chemcial Technique Centre 15869524721 3525679403@qq.com China 4334 58
Nantong QuanYi Biotechnology Co., Ltd 0513-66337626 18051384581 sales@chemhifuture.com China 6000 58
Chunchuang (Wuhan) Technology Co., Ltd 15727060112 yutianchun2007@126.com China 9864 58
Guangzhou Brand-new Changshi Pharmaceutical Biotechnology Co., Ltd 19066311943 815989315@qq.com China 909 58
Zhengzhou Runkai Pharmaceutical Technology Co., Ltd 19137644811 3649307081@qq.com China 499 58
Jurong Coupling Biotechnology Co., Ltd. 19231718652 278191416@qq.com China 463 58

RMC-7977 Spectrum

RMC-7977 (1α,5α,6α)-N-[(2R,14S,18S)-2-[5-(4-Cyclopropyl-1-piperazinyl)-2-[(1S)-1-methoxyethyl]-3-pyridinyl]-1-ethyl-18,19,20,21-tetrahydro-25,25-dimethyl-15,22-dioxo-17H-5,3-([4,2]-endo-thiazolopropano[1,3]-endo-pyridazinomethanoxypropano)-1H-indol-14-yl]-3-oxabicyclo[3.1.0]hexane-6-carboxamide 3-Oxabicyclo[3.1.0]hexane-6-carboxamide, N-[(2R,14S,18S)-2-[5-(4-cyclopropyl-1-piperazinyl)-2-[(1S)-1-methoxyethyl]-3-pyridinyl]-1-ethyl-18,19,20,21-tetrahydro-25,25-dimethyl-15,22-dioxo-17H-5,3-([4,2]-endo-thiazolopropano[1,3]-endo-pyridazinomethanoxypropano)-1H-indol-14-yl]-, (1α,5α,6α)- (3R,4r,5S)-N-((63S,4S,Z)-12-(5-(4-cyclopropylpiperazin-1-yl)-2-((S)-1-methoxyethyl)pyridin-3-yl)-11-ethyl-10,10-dimethyl-5,7-dioxo-61,62,63,64,65,66-hexahydro-11H-8-oxa-2(4,2)-thiazola-1(5,3)-indola-6(1,3)-pyridazinacycloundecaphane-4-yl)tetrahydro-2H-pyran-4-carboxamide 2765082-12-8